diff --git a/jams-react-client/src/components/CaSetup/CaSetup.tsx b/jams-react-client/src/components/CaSetup/CaSetup.tsx
index 99e0c92833e772bc054559478092458cee0d6e09..0ceabdd2a5d269f46916075b8545726a889f8ae2 100644
--- a/jams-react-client/src/components/CaSetup/CaSetup.tsx
+++ b/jams-react-client/src/components/CaSetup/CaSetup.tsx
@@ -59,16 +59,19 @@ export default function CaSetup(props) {
 
   const validationSchemaform1 = Yup.object().shape({
     commonname: Yup.string().required(
-      i18next.t("common_name_is_required", "Common name is required.")
+      i18next.t("common_name_is_required", "Common name is required.") as string
     ),
     state: Yup.string().required(
-      i18next.t("state_is_required", "State is required.")
+      i18next.t("state_is_required", "State is required.") as string
     ),
     city: Yup.string().required(
-      i18next.t("city_is_required", "City is required.")
+      i18next.t("city_is_required", "City is required.") as string
     ),
     organization: Yup.string().required(
-      i18next.t("organization_is_required", "Organization is required.")
+      i18next.t(
+        "organization_is_required",
+        "Organization is required."
+      ) as string
     ),
     organizationunit: Yup.string().required(
       i18next.t(
@@ -77,16 +80,22 @@ export default function CaSetup(props) {
       )
     ),
     country: Yup.string().required(
-      i18next.t("country_is_required", "Country is required.")
+      i18next.t("country_is_required", "Country is required.") as string
     ),
   });
 
   const validationSchemaform2 = Yup.object().shape({
     certificatefile: Yup.mixed().required(
-      i18next.t("certificate_file_is_required", "Certificate file is required.")
+      i18next.t(
+        "certificate_file_is_required",
+        "Certificate file is required."
+      ) as string
     ),
     privkeyfile: Yup.mixed().required(
-      i18next.t("private_key_file_is_required", "Private key file is required.")
+      i18next.t(
+        "private_key_file_is_required",
+        "Private key file is required."
+      ) as string
     ),
   });
 
@@ -108,8 +117,8 @@ export default function CaSetup(props) {
   ];
 
   const validityPeriods = [
-    { value: 157784630000, label: i18next.t("5_years", "5 years") },
-    { value: 315569260000, label: i18next.t("10_years", "10 years") },
+    { value: 157784630000, label: i18next.t("5_years", "5 years") as string },
+    { value: 315569260000, label: i18next.t("10_years", "10 years") as string },
   ];
 
   const certificateOptionsItems = tool.buildSelectMenuItems(
@@ -201,10 +210,12 @@ export default function CaSetup(props) {
           return (
             <form className={classes.form} noValidate onSubmit={handleSubmit}>
               <h4>
-                {i18next.t(
-                  "ca_setup_header",
-                  "Select an option for setting-up the certificate authority that will be used to sign all Jami accounts generated on this JAMS instance."
-                )}
+                {
+                  i18next.t(
+                    "ca_setup_header",
+                    "Select an option for setting-up the certificate authority that will be used to sign all Jami accounts generated on this JAMS instance."
+                  ) as string
+                }
               </h4>
               <Select
                 labelId="certificate-option-select-label"
@@ -222,7 +233,7 @@ export default function CaSetup(props) {
                 required
                 fullWidth
                 id="commonname"
-                label={i18next.t("common_name", "Common Name")}
+                label={i18next.t("common_name", "Common Name") as string}
                 name="commonname"
                 autoComplete="commonname"
                 autoFocus
@@ -245,7 +256,7 @@ export default function CaSetup(props) {
                 required
                 fullWidth
                 name="state"
-                label={i18next.t("state", "State")}
+                label={i18next.t("state", "State") as string}
                 id="state"
                 autoComplete="state"
                 value={values.state}
@@ -260,7 +271,7 @@ export default function CaSetup(props) {
                 required
                 fullWidth
                 name="city"
-                label={i18next.t("cistatety", "City")}
+                label={i18next.t("cistatety", "City") as string}
                 id="city"
                 autoComplete="city"
                 value={values.city}
@@ -275,7 +286,7 @@ export default function CaSetup(props) {
                 required
                 fullWidth
                 name="organization"
-                label={i18next.t("organization", "Organization")}
+                label={i18next.t("organization", "Organization") as string}
                 id="organization"
                 autoComplete="organization"
                 value={values.organization}
@@ -294,7 +305,9 @@ export default function CaSetup(props) {
                 required
                 fullWidth
                 name="organizationunit"
-                label={i18next.t("organization_unit", "Organization Unit")}
+                label={
+                  i18next.t("organization_unit", "Organization Unit") as string
+                }
                 id="organizationunit"
                 autoComplete="organizationunit"
                 value={values.organizationunit}
@@ -324,10 +337,12 @@ export default function CaSetup(props) {
                 color="primary"
                 className={classes.submit}
               >
-                {i18next.t(
-                  "generate_self_signed_certificate_authority",
-                  "Generate Self-Signed Certificate Authority"
-                )}
+                {
+                  i18next.t(
+                    "generate_self_signed_certificate_authority",
+                    "Generate Self-Signed Certificate Authority"
+                  ) as string
+                }
               </Button>
             </form>
           );
@@ -348,10 +363,12 @@ export default function CaSetup(props) {
           return (
             <form className={classes.form} noValidate onSubmit={handleSubmit}>
               <h4>
-                {i18next.t(
-                  "select_option_setting_up_certificate_authority",
-                  "Select an option for setting-up the certificate authority that will be used to sign all Jami accounts generated on this JAMS instance."
-                )}
+                {
+                  i18next.t(
+                    "select_option_setting_up_certificate_authority",
+                    "Select an option for setting-up the certificate authority that will be used to sign all Jami accounts generated on this JAMS instance."
+                  ) as string
+                }
               </h4>
 
               <Select
@@ -405,10 +422,12 @@ export default function CaSetup(props) {
                 color="primary"
                 className={classes.submit}
               >
-                {i18next.t(
-                  "import_certificate_authority",
-                  "Import Certificate Authority"
-                )}
+                {
+                  i18next.t(
+                    "import_certificate_authority",
+                    "Import Certificate Authority"
+                  ) as string
+                }
               </Button>
             </form>
           );
diff --git a/jams-react-client/src/components/CountrySelect/CountrySelect.tsx b/jams-react-client/src/components/CountrySelect/CountrySelect.tsx
index bbf48ca38f7b45ed4ab9d1825b80e7c68468a674..716ba1852c119a642d2400bd9594ab2b1f27b8c0 100644
--- a/jams-react-client/src/components/CountrySelect/CountrySelect.tsx
+++ b/jams-react-client/src/components/CountrySelect/CountrySelect.tsx
@@ -43,7 +43,7 @@ export default function CountrySelect({ setFieldValue, handleBlur }) {
       renderInput={(params) => (
         <TextField
           {...params}
-          label={i18next.t("choose_a_country", "Choose a country")}
+          label={i18next.t("choose_a_country", "Choose a country") as string}
           name="country"
           variant="outlined"
           onBlur={handleBlur}
diff --git a/jams-react-client/src/components/CreateAdmin/CreateAdmin.tsx b/jams-react-client/src/components/CreateAdmin/CreateAdmin.tsx
index 642c79bff980a80c4fdfebc2874c524f476d286d..683cb6682e148dd6cae930aae9aa7f55880103bd 100644
--- a/jams-react-client/src/components/CreateAdmin/CreateAdmin.tsx
+++ b/jams-react-client/src/components/CreateAdmin/CreateAdmin.tsx
@@ -57,7 +57,9 @@ export default function CreateAdmin(props) {
             "Must be 60 characters or less"
           )
         )
-        .required(i18next.t("username_is_required", "Username is required!")),
+        .required(
+          i18next.t("username_is_required", "Username is required!") as string
+        ),
       password: Yup.string()
         .max(
           50,
@@ -70,7 +72,7 @@ export default function CreateAdmin(props) {
       confirmPassword: Yup.string()
         .oneOf(
           [Yup.ref("password"), null],
-          i18next.t("password_must_match", "Passwords must match")
+          i18next.t("password_must_match", "Passwords must match") as string
         )
         .max(
           50,
@@ -119,7 +121,12 @@ export default function CreateAdmin(props) {
   return (
     <form className={classes.form} noValidate onSubmit={formik.handleSubmit}>
       <Typography variant="h5" gutterBottom color="primary">
-        {i18next.t("create_administrator", "Create administrator account")}
+        {
+          i18next.t(
+            "create_administrator",
+            "Create administrator account"
+          ) as string
+        }
       </Typography>
       <Grid container spacing={3}>
         <Grid item xs={12}>
@@ -129,7 +136,7 @@ export default function CreateAdmin(props) {
             required
             fullWidth
             id="username"
-            label={i18next.t("username", "Username")}
+            label={i18next.t("username", "Username") as string}
             name="username"
             autoComplete="email"
             autoFocus
@@ -146,7 +153,7 @@ export default function CreateAdmin(props) {
             required
             fullWidth
             name="password"
-            label={i18next.t("password", "Password")}
+            label={i18next.t("password", "Password") as string}
             type="password"
             id="password"
             autoComplete="current-password"
@@ -164,7 +171,7 @@ export default function CreateAdmin(props) {
             required
             fullWidth
             name="confirmPassword"
-            label={i18next.t("confirm_password", "Confirm password")}
+            label={i18next.t("confirm_password", "Confirm password") as string}
             type="password"
             id="confirmPassword"
             autoComplete="current-password"
@@ -183,7 +190,7 @@ export default function CreateAdmin(props) {
         color="primary"
         className={classes.submit}
       >
-        {i18next.t("continue", "Continue")}
+        {i18next.t("continue", "Continue") as string}
       </Button>
     </form>
   );
diff --git a/jams-react-client/src/components/CustomUiPreview/CustomUiPreview.tsx b/jams-react-client/src/components/CustomUiPreview/CustomUiPreview.tsx
index 7d792452f867a7d608431a7977757a208e4261cb..6673681ba7ce7956aba202e2aa6e37f2b382e757 100644
--- a/jams-react-client/src/components/CustomUiPreview/CustomUiPreview.tsx
+++ b/jams-react-client/src/components/CustomUiPreview/CustomUiPreview.tsx
@@ -133,7 +133,7 @@ export const CustomUiPreview: FC<CustomUiPreviewProps> = ({
   } = uiCustomization;
 
   if (!title) {
-    title = i18next.t("welcome_title", "Welcome to Jami");
+    title = i18next.t("welcome_title", "Welcome to Jami") as string;
   }
   if (!description) {
     description = i18next.t(
@@ -173,8 +173,11 @@ export const CustomUiPreview: FC<CustomUiPreviewProps> = ({
     "preview_tip1",
     "Add a picture and a nickname to complete your profile"
   );
-  const tip2 = i18next.t("preview_tip2", "Why should I save my account?");
-  const tip3 = i18next.t("preview_tip3", "How to set shortcuts?");
+  const tip2 = i18next.t(
+    "preview_tip2",
+    "Why should I save my account?"
+  ) as string;
+  const tip3 = i18next.t("preview_tip3", "How to set shortcuts?") as string;
 
   return (
     <div className={classes.root}>
diff --git a/jams-react-client/src/components/CustomizedSteppers/CustomizedSteppers.tsx b/jams-react-client/src/components/CustomizedSteppers/CustomizedSteppers.tsx
index 7c1cea9652b6b3daffee7a1f460740a4b86fed4b..401f588cc01841c1faecb2f2e1b66ace393cb663 100644
--- a/jams-react-client/src/components/CustomizedSteppers/CustomizedSteppers.tsx
+++ b/jams-react-client/src/components/CustomizedSteppers/CustomizedSteppers.tsx
@@ -139,10 +139,16 @@ const useStyles = makeStyles((theme) => ({
 
 function getSteps() {
   return [
-    i18next.t("create_administrator_user", "Create Administrator User"),
-    i18next.t("certificate_authority_setup", "Certificate Authority Setup"),
-    i18next.t("identity_management", "Identity Management"),
-    i18next.t("server_parameters", "Server Parameters"),
+    i18next.t(
+      "create_administrator_user",
+      "Create Administrator User"
+    ) as string,
+    i18next.t(
+      "certificate_authority_setup",
+      "Certificate Authority Setup"
+    ) as string,
+    i18next.t("identity_management", "Identity Management") as string,
+    i18next.t("server_parameters", "Server Parameters") as string,
   ];
 }
 
diff --git a/jams-react-client/src/components/Devices/Devices.tsx b/jams-react-client/src/components/Devices/Devices.tsx
index de8304216ddc7d83c6621fd9efe7d7405a4d84cf..45721ea0971d035dcfdc88ea075d46cea7702d42 100755
--- a/jams-react-client/src/components/Devices/Devices.tsx
+++ b/jams-react-client/src/components/Devices/Devices.tsx
@@ -174,11 +174,17 @@ const Devices: FC<DevicesProps> = ({ username }) => {
       <Table className={classes.table}>
         <TableHead>
           <TableRow>
-            <TableCell>{i18next.t("device_name", "Device Name")}</TableCell>
-            <TableCell>{i18next.t("device_id", "Device Id")}</TableCell>
-            <TableCell align="right">{i18next.t("status", "Status")}</TableCell>
+            <TableCell>
+              {i18next.t("device_name", "Device Name") as string}
+            </TableCell>
+            <TableCell>
+              {i18next.t("device_id", "Device Id") as string}
+            </TableCell>
+            <TableCell align="right">
+              {i18next.t("status", "Status") as string}
+            </TableCell>
             <TableCell align="right">
-              {i18next.t("actions", "Actions")}
+              {i18next.t("actions", "Actions") as string}
             </TableCell>
           </TableRow>
         </TableHead>
@@ -218,7 +224,9 @@ const Devices: FC<DevicesProps> = ({ username }) => {
                     </Tooltip>
                     <Tooltip
                       id="tooltip-top-start"
-                      title={i18next.t("revoke_device", "Revoke Device")}
+                      title={
+                        i18next.t("revoke_device", "Revoke Device") as string
+                      }
                       placement="top"
                       classes={{ tooltip: classes.tooltip }}
                     >
diff --git a/jams-react-client/src/components/Devices/EditDeviceDialog.tsx b/jams-react-client/src/components/Devices/EditDeviceDialog.tsx
index a43b8865b660fe4e3ea5c292e938dc96ff17c6e6..cc7fac87cc4ffb10daee07b49f3825d77999f9ce 100644
--- a/jams-react-client/src/components/Devices/EditDeviceDialog.tsx
+++ b/jams-react-client/src/components/Devices/EditDeviceDialog.tsx
@@ -44,7 +44,12 @@ const EditDeviceDialog: FC<EditDeviceDialogProps> = ({
       aria-labelledby="form-dialog-title"
     >
       <DialogTitle id="form-edit-dialog-title">
-        {i18next.t("update_device_information", "Update Device Information")}
+        {
+          i18next.t(
+            "update_device_information",
+            "Update Device Information"
+          ) as string
+        }
       </DialogTitle>
       <Formik
         initialValues={{
@@ -80,7 +85,7 @@ const EditDeviceDialog: FC<EditDeviceDialogProps> = ({
             </DialogContent>
             <DialogActions>
               <Button onClick={handleClose} color="primary">
-                {i18next.t("cancel", "Cancel")}
+                {i18next.t("cancel", "Cancel") as string}
               </Button>
               <Button
                 onClick={() =>
@@ -88,7 +93,7 @@ const EditDeviceDialog: FC<EditDeviceDialogProps> = ({
                 }
                 color="primary"
               >
-                {i18next.t("update", "Update")}
+                {i18next.t("update", "Update") as string}
               </Button>
             </DialogActions>
           </form>
diff --git a/jams-react-client/src/components/Devices/RevokeDeviceDialog.tsx b/jams-react-client/src/components/Devices/RevokeDeviceDialog.tsx
index 53662b2996d66afc859b6e870c0cf8d48c28c7fd..613b72d8d352192274089062d0c90bcaf6a83410 100644
--- a/jams-react-client/src/components/Devices/RevokeDeviceDialog.tsx
+++ b/jams-react-client/src/components/Devices/RevokeDeviceDialog.tsx
@@ -27,22 +27,24 @@ const RevokeDeviceDialog: FC<RevokeDeviceDialogProps> = ({
       aria-labelledby="form-dialog-title"
     >
       <DialogTitle id="form-revoke-dialog-title">
-        {i18next.t("revoke_device", "Revoke Device")}
+        {i18next.t("revoke_device", "Revoke Device") as string}
       </DialogTitle>
       <DialogContent>
         <DialogContentText>
-          {i18next.t(
-            "are_you_sure_you_want_to_revoke_this_device",
-            "Are you sure you want to revoke this device?"
-          )}
+          {
+            i18next.t(
+              "are_you_sure_you_want_to_revoke_this_device",
+              "Are you sure you want to revoke this device?"
+            ) as string
+          }
         </DialogContentText>
       </DialogContent>
       <DialogActions>
         <Button onClick={handleClose} color="primary">
-          {i18next.t("cancel", "Cancel")}
+          {i18next.t("cancel", "Cancel") as string}
         </Button>
         <Button onClick={handleDeviceRevoke} color="primary">
-          {i18next.t("confirm_revoke", "Confirm Revoke")}
+          {i18next.t("confirm_revoke", "Confirm Revoke") as string}
         </Button>
       </DialogActions>
     </Dialog>
diff --git a/jams-react-client/src/components/IdentityManagement/AdStorageForm.tsx b/jams-react-client/src/components/IdentityManagement/AdStorageForm.tsx
index 4064a8f3f443411eae5d759979765beabdf447c4..04184cf2e9a36c8bdd705b1f1565f6a781186328 100644
--- a/jams-react-client/src/components/IdentityManagement/AdStorageForm.tsx
+++ b/jams-react-client/src/components/IdentityManagement/AdStorageForm.tsx
@@ -13,10 +13,12 @@ export default function AdStorageForm(props) {
     <Grid container spacing={3}>
       <Grid item xs={12}>
         <Typography variant="subtitle1" gutterBottom color="primary">
-          {i18next.t(
-            "active_directory_server_informations",
-            "Active Directory server information"
-          )}
+          {
+            i18next.t(
+              "active_directory_server_informations",
+              "Active Directory server information"
+            ) as string
+          }
         </Typography>
       </Grid>
       <Grid item xs={6}>
@@ -26,7 +28,7 @@ export default function AdStorageForm(props) {
           required
           fullWidth
           id="port"
-          label={i18next.t("port", "Port")}
+          label={i18next.t("port", "Port") as string}
           name="port"
           autoComplete="port"
           value={props.values.port}
@@ -44,7 +46,7 @@ export default function AdStorageForm(props) {
           required
           fullWidth
           id="host"
-          label={i18next.t("host", "Host")}
+          label={i18next.t("host", "Host") as string}
           name="host"
           autoComplete="host"
           value={props.values.host}
@@ -62,7 +64,7 @@ export default function AdStorageForm(props) {
           required
           fullWidth
           id="adminusername"
-          label={i18next.t("admin_username", "Admin username")}
+          label={i18next.t("admin_username", "Admin username") as string}
           name="adadminusername"
           autoComplete="adminusername"
           value={props.values.adadminusername}
@@ -82,7 +84,7 @@ export default function AdStorageForm(props) {
           required
           fullWidth
           id="password"
-          label={i18next.t("password", "Password")}
+          label={i18next.t("password", "Password") as string}
           name="adpassword"
           autoComplete="password"
           type="password"
@@ -103,7 +105,7 @@ export default function AdStorageForm(props) {
           required
           fullWidth
           id="domainname"
-          label={i18next.t("domain_name", "Domain Name")}
+          label={i18next.t("domain_name", "Domain Name") as string}
           name="domainname"
           autoComplete="domainname"
           value={props.values.domainname}
@@ -130,12 +132,12 @@ export default function AdStorageForm(props) {
           <FormControlLabel
             value="true"
             control={<Radio color="primary" />}
-            label={i18next.t("yes", "Yes")}
+            label={i18next.t("yes", "Yes") as string}
           />
           <FormControlLabel
             value="false"
             control={<Radio color="default" />}
-            label={i18next.t("no", "No")}
+            label={i18next.t("no", "No") as string}
           />
         </RadioGroup>
       </Grid>
diff --git a/jams-react-client/src/components/IdentityManagement/IdentityManagement.tsx b/jams-react-client/src/components/IdentityManagement/IdentityManagement.tsx
index 2804c981989b3d57c34eac9e33dec59041deb138..13df64f194aa013ce7b7e6aa6ac18f0b27bd4750 100644
--- a/jams-react-client/src/components/IdentityManagement/IdentityManagement.tsx
+++ b/jams-react-client/src/components/IdentityManagement/IdentityManagement.tsx
@@ -64,45 +64,63 @@ export default function IdentityManagement(props) {
 
   const validationSchemaLDAPform = Yup.object().shape({
     servername: Yup.string().required(
-      i18next.t("servername_is_required", "Server name is required.")
+      i18next.t("servername_is_required", "Server name is required.") as string
     ),
     ldapadminusername: Yup.string().required(
-      i18next.t("username_is_required", "Username is required!")
+      i18next.t("username_is_required", "Username is required!") as string
     ),
     ldappassword: Yup.string().required(
-      i18next.t("password_is_required", "Password is required!")
+      i18next.t("password_is_required", "Password is required!") as string
     ),
     basedn: Yup.string().required(
-      i18next.t("domain_name_is_required", "Domain name is required.")
+      i18next.t("domain_name_is_required", "Domain name is required.") as string
     ),
   });
 
   const validationSchemaADform = Yup.object().shape({
     port: Yup.number()
-      .typeError(i18next.t("port_must_be_a_number", "Port must be a number."))
-      .positive(i18next.t("port_must_be_positive", "Port must be positive."))
-      .integer(i18next.t("port_must_be_an_integer", "Port must be an integer."))
+      .typeError(
+        i18next.t("port_must_be_a_number", "Port must be a number.") as string
+      )
+      .positive(
+        i18next.t("port_must_be_positive", "Port must be positive.") as string
+      )
+      .integer(
+        i18next.t(
+          "port_must_be_an_integer",
+          "Port must be an integer."
+        ) as string
+      )
       .required(
-        i18next.t("port_number_is_required", "Port number is required.")
+        i18next.t(
+          "port_number_is_required",
+          "Port number is required."
+        ) as string
       ),
     host: Yup.string().required(
-      i18next.t("host_is_required", "Host is required.")
+      i18next.t("host_is_required", "Host is required.") as string
     ),
     adadminusername: Yup.string().required(
-      i18next.t("username_is_required", "Username is required!")
+      i18next.t("username_is_required", "Username is required!") as string
     ),
     domainname: Yup.string().required(
-      i18next.t("domain_name_is_required", "Domain name is required.")
+      i18next.t("domain_name_is_required", "Domain name is required.") as string
     ),
     adpassword: Yup.string().required(
-      i18next.t("password_is_required", "Password is required!")
+      i18next.t("password_is_required", "Password is required!") as string
     ),
   });
 
   const directoryTypes = [
-    { value: 0, label: i18next.t("local_database", "Local Database") },
-    { value: 1, label: i18next.t("ldap_server", "LDAP Server") },
-    { value: 2, label: i18next.t("active_directory", "Active Directory") },
+    {
+      value: 0,
+      label: i18next.t("local_database", "Local Database") as string,
+    },
+    { value: 1, label: i18next.t("ldap_server", "LDAP Server") as string },
+    {
+      value: 2,
+      label: i18next.t("active_directory", "Active Directory") as string,
+    },
   ];
 
   const directoryTypesItems = buildSelectMenuItems(directoryTypes);
@@ -307,15 +325,17 @@ export default function IdentityManagement(props) {
     return (
       <form className={classes.form} noValidate onSubmit={handleLocalSubmit}>
         <Typography variant="h5" gutterBottom color="primary">
-          {i18next.t("identity_management", "Identity Management")}
+          {i18next.t("identity_management", "Identity Management") as string}
         </Typography>
         <Grid container spacing={3}>
           <Grid item xs={12}>
             <Typography variant="body1" gutterBottom>
-              {i18next.t(
-                "select_type_of_user_directory",
-                "Select the type of user directory to be integrated with JAMS"
-              )}
+              {
+                i18next.t(
+                  "select_type_of_user_directory",
+                  "Select the type of user directory to be integrated with JAMS"
+                ) as string
+              }
             </Typography>
             <Select
               labelId="demo-simple-select-label"
@@ -339,7 +359,12 @@ export default function IdentityManagement(props) {
           color="primary"
           className={classes.submit}
         >
-          {i18next.t("set_identity_parameters", "Set identity parameters")}
+          {
+            i18next.t(
+              "set_identity_parameters",
+              "Set identity parameters"
+            ) as string
+          }
         </Button>
       </form>
     );
@@ -364,15 +389,22 @@ export default function IdentityManagement(props) {
           return (
             <form className={classes.form} noValidate onSubmit={handleSubmit}>
               <Typography variant="h5" gutterBottom color="primary">
-                {i18next.t("identity_management", "Identity Management")}
+                {
+                  i18next.t(
+                    "identity_management",
+                    "Identity Management"
+                  ) as string
+                }
               </Typography>
               <Grid container spacing={3}>
                 <Grid item xs={12}>
                   <Typography variant="body1" gutterBottom>
-                    {i18next.t(
-                      "select_type_of_user_directory",
-                      "Select the type of user directory to be integrated with JAMS"
-                    )}
+                    {
+                      i18next.t(
+                        "select_type_of_user_directory",
+                        "Select the type of user directory to be integrated with JAMS"
+                      ) as string
+                    }
                   </Typography>
                   <Select
                     labelId="demo-simple-select-label"
@@ -393,10 +425,12 @@ export default function IdentityManagement(props) {
                 color="primary"
                 className={classes.submit}
               >
-                {i18next.t(
-                  "set_identity_parameters",
-                  "Set identity parameters"
-                )}
+                {
+                  i18next.t(
+                    "set_identity_parameters",
+                    "Set identity parameters"
+                  ) as string
+                }
               </Button>
             </form>
           );
@@ -424,15 +458,22 @@ export default function IdentityManagement(props) {
           return (
             <form className={classes.form} noValidate onSubmit={handleSubmit}>
               <Typography variant="h5" gutterBottom color="primary">
-                {i18next.t("identity_management", "Identity Management")}
+                {
+                  i18next.t(
+                    "identity_management",
+                    "Identity Management"
+                  ) as string
+                }
               </Typography>
               <Grid container spacing={3}>
                 <Grid item xs={12}>
                   <Typography variant="body1" gutterBottom>
-                    {i18next.t(
-                      "select_type_of_user_directory",
-                      "Select the type of user directory to be integrated with JAMS"
-                    )}
+                    {
+                      i18next.t(
+                        "select_type_of_user_directory",
+                        "Select the type of user directory to be integrated with JAMS"
+                      ) as string
+                    }
                   </Typography>
                   <Select
                     labelId="demo-simple-select-label"
@@ -453,10 +494,12 @@ export default function IdentityManagement(props) {
                 color="primary"
                 className={classes.submit}
               >
-                {i18next.t(
-                  "set_identity_parameters",
-                  "Set identity parameters"
-                )}
+                {
+                  i18next.t(
+                    "set_identity_parameters",
+                    "Set identity parameters"
+                  ) as string
+                }
               </Button>
             </form>
           );
diff --git a/jams-react-client/src/components/IdentityManagement/LdapStorageForm.tsx b/jams-react-client/src/components/IdentityManagement/LdapStorageForm.tsx
index 35bdad3136f4ead7aa8ab37effd1ecc8c0a6461d..40a303cc385fb225726af8be398bff33e484fda4 100644
--- a/jams-react-client/src/components/IdentityManagement/LdapStorageForm.tsx
+++ b/jams-react-client/src/components/IdentityManagement/LdapStorageForm.tsx
@@ -15,7 +15,12 @@ export default function LdapStorageForm(props) {
     <Grid container spacing={3}>
       <Grid item xs={12}>
         <Typography variant="subtitle1" gutterBottom color="primary">
-          {i18next.t("ldap_server_information", "LDAP Server informations")}
+          {
+            i18next.t(
+              "ldap_server_information",
+              "LDAP Server informations"
+            ) as string
+          }
         </Typography>
       </Grid>
       <Grid item xs={12}>
@@ -25,7 +30,7 @@ export default function LdapStorageForm(props) {
           required
           fullWidth
           id="servername"
-          label={i18next.t("server_address", "Server address")}
+          label={i18next.t("server_address", "Server address") as string}
           name="servername"
           autoComplete="servername"
           value={props.values.servername}
@@ -46,7 +51,12 @@ export default function LdapStorageForm(props) {
           required
           fullWidth
           id="adminusername"
-          label={i18next.t("administrator_username", "Administrator username")}
+          label={
+            i18next.t(
+              "administrator_username",
+              "Administrator username"
+            ) as string
+          }
           name="ldapadminusername"
           autoComplete="adminusername"
           value={props.values.ldapadminusername}
@@ -66,7 +76,7 @@ export default function LdapStorageForm(props) {
           required
           fullWidth
           id="password"
-          label={i18next.t("password", "Password")}
+          label={i18next.t("password", "Password") as string}
           name="ldappassword"
           autoComplete="password"
           type="password"
@@ -84,10 +94,12 @@ export default function LdapStorageForm(props) {
         <TextField
           variant="outlined"
           id="basedn"
-          label={i18next.t(
-            "base_dn_please_use_ldap_convention",
-            "Base DN (Please use LDAP convention)"
-          )}
+          label={
+            i18next.t(
+              "base_dn_please_use_ldap_convention",
+              "Base DN (Please use LDAP convention)"
+            ) as string
+          }
           name="basedn"
           autoComplete="basedn"
           required
@@ -114,12 +126,12 @@ export default function LdapStorageForm(props) {
           <FormControlLabel
             value="true"
             control={<Radio color="primary" />}
-            label={i18next.t("yes", "Yes")}
+            label={i18next.t("yes", "Yes") as string}
           />
           <FormControlLabel
             value="false"
             control={<Radio color="default" />}
-            label={i18next.t("no", "No")}
+            label={i18next.t("no", "No") as string}
           />
         </RadioGroup>
       </Grid>
diff --git a/jams-react-client/src/components/IdentityManagement/LocalStorageForm.tsx b/jams-react-client/src/components/IdentityManagement/LocalStorageForm.tsx
index 0524c41899282a1ff227b2e45f44b6dcef063e80..775b138c260dff5873ff685550232dc26c780416 100644
--- a/jams-react-client/src/components/IdentityManagement/LocalStorageForm.tsx
+++ b/jams-react-client/src/components/IdentityManagement/LocalStorageForm.tsx
@@ -11,7 +11,7 @@ export default function LocalStorageForm(props) {
     <Grid container spacing={3}>
       <Grid item xs={12}>
         <Typography variant="subtitle1" gutterBottom color="primary">
-          {i18next.t("advanced_settings", "Advanced settings")}
+          {i18next.t("advanced_settings", "Advanced settings") as string}
         </Typography>
       </Grid>
       <Grid item xs={12}>
@@ -24,7 +24,12 @@ export default function LocalStorageForm(props) {
               color="primary"
             />
           }
-          label={i18next.t("use_public_nameserver", "Use public nameserver")}
+          label={
+            i18next.t(
+              "use_public_nameserver",
+              "Use public nameserver"
+            ) as string
+          }
         />
         <CustomPopupState
           message={i18next.t(
diff --git a/jams-react-client/src/components/ServerParameters/ServerParameters.tsx b/jams-react-client/src/components/ServerParameters/ServerParameters.tsx
index 2045eb8c59b6f1d388e7a28ea5f02d6236cec38f..9b6a4a3eaa86c32e28449cad0487de8535266f63 100644
--- a/jams-react-client/src/components/ServerParameters/ServerParameters.tsx
+++ b/jams-react-client/src/components/ServerParameters/ServerParameters.tsx
@@ -48,30 +48,30 @@ export default function ServerParameters({ setError, setErrorMessage }) {
   const initialValues = { domain: backend_address.origin };
   const validationSchema = Yup.object().shape({
     domain: Yup.string().required(
-      i18next.t("domain_is_required", "Domain is required.")
+      i18next.t("domain_is_required", "Domain is required.") as string
     ),
   });
 
   type Settings = Yup.InferType<typeof validationSchema>;
 
   const certificateRevocationTypes = [
-    { value: 300000, label: i18next.t("5_minutes", "5 minutes") },
-    { value: 600000, label: i18next.t("10_minutes", "10 minutes") },
-    { value: 900000, label: i18next.t("15_minutes", "15 minutes") },
-    { value: 1800000, label: i18next.t("30_minutes", "30 minutes") },
-    { value: 3600000, label: i18next.t("60_minutes", "60 minutes") },
+    { value: 300000, label: i18next.t("5_minutes", "5 minutes") as string },
+    { value: 600000, label: i18next.t("10_minutes", "10 minutes") as string },
+    { value: 900000, label: i18next.t("15_minutes", "15 minutes") as string },
+    { value: 1800000, label: i18next.t("30_minutes", "30 minutes") as string },
+    { value: 3600000, label: i18next.t("60_minutes", "60 minutes") as string },
   ];
 
   const deviceLifetimeTypes = [
-    { value: 2629746000, label: i18next.t("1_month", "1 month") },
-    { value: 7889238000, label: i18next.t("3_months", "3 months") },
-    { value: 15778476000, label: i18next.t("6_months", "6 months") },
-    { value: 31556952000, label: i18next.t("1_year", "1 year") },
+    { value: 2629746000, label: i18next.t("1_month", "1 month") as string },
+    { value: 7889238000, label: i18next.t("3_months", "3 months") as string },
+    { value: 15778476000, label: i18next.t("6_months", "6 months") as string },
+    { value: 31556952000, label: i18next.t("1_year", "1 year") as string },
   ];
 
   const userAccountLifetimeTypes = [
-    { value: 31556952000, label: i18next.t("1_year", "1 year") },
-    { value: 157784760000, label: i18next.t("5_years", "5 years") },
+    { value: 31556952000, label: i18next.t("1_year", "1 year") as string },
+    { value: 157784760000, label: i18next.t("5_years", "5 years") as string },
   ];
 
   const certificateRevocationTypesItems = tool.buildSelectMenuItems(
@@ -189,16 +189,18 @@ export default function ServerParameters({ setError, setErrorMessage }) {
         return (
           <form className={classes.form} noValidate onSubmit={handleSubmit}>
             <Typography variant="h5" gutterBottom color="primary">
-              {i18next.t("server_parameters", "Server Parameters")}
+              {i18next.t("server_parameters", "Server Parameters") as string}
             </Typography>
             <Typography variant="body1" gutterBottom>
-              {i18next.t(
-                "global_parameters_cover_general_configuration_of_servers_engine",
-                "The global parameters cover the general configuration of the server's engine."
-              )}
+              {
+                i18next.t(
+                  "global_parameters_cover_general_configuration_of_servers_engine",
+                  "The global parameters cover the general configuration of the server's engine."
+                ) as string
+              }
             </Typography>
             <Typography variant="subtitle1" gutterBottom>
-              {i18next.t("cors_domain_name", "CORS domain name")}
+              {i18next.t("cors_domain_name", "CORS domain name") as string}
               <CustomPopupState
                 message={i18next.t(
                   "set_domain_of_web_cleint_server_to_connect_to_hans_admin_dashboard_and_jami_accounts_also_to_set_client_crls_ocsps",
@@ -207,10 +209,12 @@ export default function ServerParameters({ setError, setErrorMessage }) {
               />
             </Typography>
             <Typography variant="body1" gutterBottom>
-              {i18next.t(
-                "domain_name_of_web_client_server",
-                "The domain name of your web client server."
-              )}
+              {
+                i18next.t(
+                  "domain_name_of_web_client_server",
+                  "The domain name of your web client server."
+                ) as string
+              }
             </Typography>
             <TextField
               variant="outlined"
@@ -218,7 +222,7 @@ export default function ServerParameters({ setError, setErrorMessage }) {
               required
               fullWidth
               id="domain"
-              label={i18next.t("domain", "Domain")}
+              label={i18next.t("domain", "Domain") as string}
               name="domain"
               autoComplete="domain"
               autoFocus
@@ -228,10 +232,12 @@ export default function ServerParameters({ setError, setErrorMessage }) {
               helperText={errors.domain && touched.domain && errors.domain}
             />
             <Typography variant="subtitle1" gutterBottom>
-              {i18next.t(
-                "certificate_revocation_list_lifetime",
-                "Certificate Revocation List Lifetime"
-              )}
+              {
+                i18next.t(
+                  "certificate_revocation_list_lifetime",
+                  "Certificate Revocation List Lifetime"
+                ) as string
+              }
               <CustomPopupState
                 message={i18next.t(
                   "set_liftetime_crl_list_certificates_revoked",
@@ -249,7 +255,7 @@ export default function ServerParameters({ setError, setErrorMessage }) {
               {certificateRevocationTypesItems}
             </Select>
             <Typography variant="subtitle1" gutterBottom>
-              {i18next.t("device_lifetime", "Device lifetime")}
+              {i18next.t("device_lifetime", "Device lifetime") as string}
             </Typography>
             <Select
               labelId="device-lifetime-select-label"
@@ -261,7 +267,12 @@ export default function ServerParameters({ setError, setErrorMessage }) {
               {deviceLifetimeTypesItems}
             </Select>
             <Typography variant="subtitle1" gutterBottom>
-              {i18next.t("user_account_lifetime", "User account lifetime")}
+              {
+                i18next.t(
+                  "user_account_lifetime",
+                  "User account lifetime"
+                ) as string
+              }
             </Typography>
             <Select
               labelId="user-account-lifetime-select-label"
@@ -274,17 +285,21 @@ export default function ServerParameters({ setError, setErrorMessage }) {
             </Select>
             {userlifeDisabled ? (
               <span className="spanError">
-                {i18next.t(
-                  "account_lifetime_should_be_bigger_to_device_lifetime",
-                  "The account lifetime should be longer than the Device lifetime."
-                )}
+                {
+                  i18next.t(
+                    "account_lifetime_should_be_bigger_to_device_lifetime",
+                    "The account lifetime should be longer than the Device lifetime."
+                  ) as string
+                }
               </span>
             ) : null}
             <Typography variant="subtitle1" gutterBottom>
-              {i18next.t(
-                "sip_configuration_template",
-                "SIP Configuration Template"
-              )}
+              {
+                i18next.t(
+                  "sip_configuration_template",
+                  "SIP Configuration Template"
+                ) as string
+              }
             </Typography>
             <Input
               fullWidth
@@ -299,7 +314,12 @@ export default function ServerParameters({ setError, setErrorMessage }) {
               color="primary"
               className={classes.submit}
             >
-              {i18next.t("set_server_parameters", "Set Server Parameters")}
+              {
+                i18next.t(
+                  "set_server_parameters",
+                  "Set Server Parameters"
+                ) as string
+              }
             </Button>
           </form>
         );
diff --git a/jams-react-client/src/components/Sidebar/Sidebar.tsx b/jams-react-client/src/components/Sidebar/Sidebar.tsx
index c9310c159b2fbd2aa764253feaa4ef2cf2817fde..d66b25073492021c5110713cfc42b800b8591990 100755
--- a/jams-react-client/src/components/Sidebar/Sidebar.tsx
+++ b/jams-react-client/src/components/Sidebar/Sidebar.tsx
@@ -154,7 +154,7 @@ export default function Sidebar(props) {
           <ExitToAppIcon />
         </Icon>
         <ListItemText
-          primary={i18next.t("Logout", "Logout")}
+          primary={i18next.t("Logout", "Logout") as string}
           className={classNames(classes.itemText, {
             [classes.itemTextRTL]: false,
           })}
diff --git a/jams-react-client/src/layouts/BaseLayout.tsx b/jams-react-client/src/layouts/BaseLayout.tsx
index a083021f837ec5c492a6635527dc0b787d1ad07b..c59c5703010b410e2c76861f3b02dac3a42c7880 100644
--- a/jams-react-client/src/layouts/BaseLayout.tsx
+++ b/jams-react-client/src/layouts/BaseLayout.tsx
@@ -66,21 +66,21 @@ export default function Admin(props) {
   const Routes = [
     {
       path: `/user/${auth.getUsername()}`,
-      name: i18next.t("myprofile", "My profile"),
+      name: i18next.t("myprofile", "My profile") as string,
       icon: AccountCircleIcon,
       component: Users,
       layout: "/admin",
     },
     {
       path: "/users",
-      name: i18next.t("users", "Users"),
+      name: i18next.t("users", "Users") as string,
       icon: Person,
       component: Users,
       layout: "/admin",
     },
     {
       path: "/groups",
-      name: i18next.t("groups", "Groups"),
+      name: i18next.t("groups", "Groups") as string,
       icon: Group,
       component: Groups,
       layout: "/admin",
@@ -88,7 +88,7 @@ export default function Admin(props) {
     },
     {
       path: "/blueprints",
-      name: i18next.t("blueprints", "Blueprints"),
+      name: i18next.t("blueprints", "Blueprints") as string,
       icon: AllInbox,
       component: Blueprints,
       layout: "/admin",
@@ -96,7 +96,7 @@ export default function Admin(props) {
     },
     {
       path: "/settings",
-      name: i18next.t("settings", "Settings"),
+      name: i18next.t("settings", "Settings") as string,
       icon: SettingsIcon,
       component: Settings,
       layout: "/admin",
diff --git a/jams-react-client/src/layouts/ListLayout.tsx b/jams-react-client/src/layouts/ListLayout.tsx
index e92d9c9e695704a227672c64a5d9a155e6a8d633..c95207ee0aa2d2f04e297256852b143efec00b13 100644
--- a/jams-react-client/src/layouts/ListLayout.tsx
+++ b/jams-react-client/src/layouts/ListLayout.tsx
@@ -66,7 +66,7 @@ export default function Admin(props) {
   const Routes = [
     {
       path: `/user/${auth.getUsername()}`,
-      name: i18next.t("myprofile", "My profile"),
+      name: i18next.t("myprofile", "My profile") as string,
       icon: AccountCircleIcon,
       component: Users,
       layout: "/admin",
@@ -74,7 +74,7 @@ export default function Admin(props) {
     },
     {
       path: "/users",
-      name: i18next.t("users", "Users"),
+      name: i18next.t("users", "Users") as string,
       icon: Person,
       component: Users,
       layout: "/admin",
@@ -82,7 +82,7 @@ export default function Admin(props) {
     },
     {
       path: "/groups",
-      name: i18next.t("groups", "Groups"),
+      name: i18next.t("groups", "Groups") as string,
       icon: Group,
       component: Groups,
       layout: "/admin",
@@ -90,7 +90,7 @@ export default function Admin(props) {
     },
     {
       path: "/blueprints",
-      name: i18next.t("blueprints", "Blueprints"),
+      name: i18next.t("blueprints", "Blueprints") as string,
       icon: AllInbox,
       component: Blueprints,
       layout: "/admin",
@@ -98,7 +98,7 @@ export default function Admin(props) {
     },
     {
       path: "/settings",
-      name: i18next.t("settings", "Settings"),
+      name: i18next.t("settings", "Settings") as string,
       icon: SettingsIcon,
       component: Settings,
       layout: "/admin",
diff --git a/jams-react-client/src/layouts/SignIn.tsx b/jams-react-client/src/layouts/SignIn.tsx
index f139bea832ff1ee5bac79c2eb0f9581287ba334a..691bda615a9c0258675653d8b237e5474f67e2bd 100644
--- a/jams-react-client/src/layouts/SignIn.tsx
+++ b/jams-react-client/src/layouts/SignIn.tsx
@@ -107,7 +107,10 @@ export default function SignIn() {
       } else {
         setError(true);
         setErrorMessage(
-          i18next.t("login_failed", "Login failed. Check your credentials.")
+          i18next.t(
+            "login_failed",
+            "Login failed. Check your credentials."
+          ) as string
         );
       }
     });
@@ -123,7 +126,7 @@ export default function SignIn() {
           alt="logo"
         />
         <Typography component="h1" variant="h5">
-          {i18next.t("sign_in", "Sign In")}
+          {i18next.t("sign_in", "Sign In") as string}
         </Typography>
         {error && <Alert severity="error">{errorMessage}</Alert>}
         <Formik
@@ -150,7 +153,7 @@ export default function SignIn() {
                   required
                   fullWidth
                   id="username"
-                  label={i18next.t("username", "Username")}
+                  label={i18next.t("username", "Username") as string}
                   name="username"
                   autoComplete="username"
                   autoFocus
@@ -167,7 +170,7 @@ export default function SignIn() {
                   required
                   fullWidth
                   name="password"
-                  label={i18next.t("password", "Password")}
+                  label={i18next.t("password", "Password") as string}
                   type="password"
                   id="password"
                   autoComplete="current-password"
@@ -185,7 +188,7 @@ export default function SignIn() {
                   color="primary"
                   className={classes.submit}
                 >
-                  {i18next.t("sign_in", "Sign In")}
+                  {i18next.t("sign_in", "Sign In") as string}
                 </Button>
               </form>
             );
diff --git a/jams-react-client/src/views/Blueprint/Blueprint.tsx b/jams-react-client/src/views/Blueprint/Blueprint.tsx
index 8b1dee29c1ee850f54d6a9ea6d17d88e7e0d6208..e5ad325bdbcef65525106f6efa1f356e604353da 100644
--- a/jams-react-client/src/views/Blueprint/Blueprint.tsx
+++ b/jams-react-client/src/views/Blueprint/Blueprint.tsx
@@ -68,15 +68,15 @@ export const Blueprint: FC<BlueprintProps> = ({ blueprintName }) => {
           indicatorColor="secondary"
         >
           <Tab
-            label={i18next.t("permissions", "Permissions")}
+            label={i18next.t("permissions", "Permissions") as string}
             {...a11yProps(openedTab, 0)}
           />
           <Tab
-            label={i18next.t("configuration", "Configuration")}
+            label={i18next.t("configuration", "Configuration") as string}
             {...a11yProps(openedTab, 1)}
           />
           <Tab
-            label={i18next.t("customization", "Customization")}
+            label={i18next.t("customization", "Customization") as string}
             {...a11yProps(openedTab, 2)}
           />
         </Tabs>
diff --git a/jams-react-client/src/views/Blueprint/EditBlueprintConfiguration.tsx b/jams-react-client/src/views/Blueprint/EditBlueprintConfiguration.tsx
index a167c62fa35f58abb3ed7af4e90c75bdc47eb303..76a14576ed7c9d02c9f201ea73da2677a9e9b50b 100644
--- a/jams-react-client/src/views/Blueprint/EditBlueprintConfiguration.tsx
+++ b/jams-react-client/src/views/Blueprint/EditBlueprintConfiguration.tsx
@@ -203,7 +203,7 @@ export default function EditBlueprintConfiguration(props) {
                 <BuildOutlinedIcon />
               </CardIcon>
               <p className={classes.cardCategory}>
-                {i18next.t("configuration", "Configuration")}
+                {i18next.t("configuration", "Configuration") as string}
               </p>
               <h3 className={classes.cardTitle}>{props.blueprintName}</h3>
             </CardHeader>
@@ -232,7 +232,7 @@ export default function EditBlueprintConfiguration(props) {
                           inputProps={{ "aria-label": "secondary checkbox" }}
                         />
                       }
-                      label={i18next.t("enable_upnp", "Enable UPnP")}
+                      label={i18next.t("enable_upnp", "Enable UPnP") as string}
                     />
                   </Grid>
                   <Grid item xs={12} sm={12} md={12}>
@@ -255,18 +255,22 @@ export default function EditBlueprintConfiguration(props) {
                         <FormControlLabel
                           value="defaultTurn"
                           control={<StyledRadio />}
-                          label={i18next.t(
-                            "use_jami_default_turn_configuration",
-                            "Use default TURN configuration"
-                          )}
+                          label={
+                            i18next.t(
+                              "use_jami_default_turn_configuration",
+                              "Use default TURN configuration"
+                            ) as string
+                          }
                         />
                         <FormControlLabel
                           value="customTurn"
                           control={<StyledRadio />}
-                          label={i18next.t(
-                            "use_a_custom_turn_configuration",
-                            "Use a custom TURN configuration"
-                          )}
+                          label={
+                            i18next.t(
+                              "use_a_custom_turn_configuration",
+                              "Use a custom TURN configuration"
+                            ) as string
+                          }
                         />
                         <FormGroup
                           row
@@ -279,10 +283,12 @@ export default function EditBlueprintConfiguration(props) {
                         >
                           <FormControl className={classes.margin}>
                             <InputLabel htmlFor="turnServer">
-                              {i18next.t(
-                                "turn_server_address",
-                                "TURN Server address"
-                              )}
+                              {
+                                i18next.t(
+                                  "turn_server_address",
+                                  "TURN Server address"
+                                ) as string
+                              }
                             </InputLabel>
                             <Input
                               id="turnServer"
@@ -309,10 +315,12 @@ export default function EditBlueprintConfiguration(props) {
                         >
                           <FormControl className={classes.margin}>
                             <InputLabel htmlFor="turnServerUserName">
-                              {i18next.t(
-                                "turn_server_username",
-                                "TURN server username"
-                              )}
+                              {
+                                i18next.t(
+                                  "turn_server_username",
+                                  "TURN server username"
+                                ) as string
+                              }
                             </InputLabel>
                             <Input
                               id="turnServerUserName"
@@ -342,10 +350,12 @@ export default function EditBlueprintConfiguration(props) {
                         >
                           <FormControl className={classes.margin}>
                             <InputLabel htmlFor="turnServerPassword">
-                              {i18next.t(
-                                "turn_server_password",
-                                "TURN server password"
-                              )}
+                              {
+                                i18next.t(
+                                  "turn_server_password",
+                                  "TURN server password"
+                                ) as string
+                              }
                             </InputLabel>
                             <Input
                               id="turnServerPassword"
@@ -382,10 +392,12 @@ export default function EditBlueprintConfiguration(props) {
                         <FormControlLabel
                           value="disabledTurn"
                           control={<StyledRadio />}
-                          label={i18next.t(
-                            "disable_turn_configuration",
-                            "Disable TURN configuration"
-                          )}
+                          label={
+                            i18next.t(
+                              "disable_turn_configuration",
+                              "Disable TURN configuration"
+                            ) as string
+                          }
                         />
                       </RadioGroup>
                     </FormControl>
@@ -411,18 +423,22 @@ export default function EditBlueprintConfiguration(props) {
                         <FormControlLabel
                           value="defaultDHTProxy"
                           control={<StyledRadio />}
-                          label={i18next.t(
-                            "use_jami_default_dht_proxy_configuration",
-                            "Use Jami default DHT Proxy configuration"
-                          )}
+                          label={
+                            i18next.t(
+                              "use_jami_default_dht_proxy_configuration",
+                              "Use Jami default DHT Proxy configuration"
+                            ) as string
+                          }
                         />
                         <FormControlLabel
                           value="customDHTProxy"
                           control={<StyledRadio />}
-                          label={i18next.t(
-                            "use_a_custom_dht_proxy_configuration",
-                            "Use a custom DHT Proxy configuration"
-                          )}
+                          label={
+                            i18next.t(
+                              "use_a_custom_dht_proxy_configuration",
+                              "Use a custom DHT Proxy configuration"
+                            ) as string
+                          }
                         />
                         <FormGroup row>
                           <FormControl
@@ -435,10 +451,12 @@ export default function EditBlueprintConfiguration(props) {
                             }}
                           >
                             <InputLabel htmlFor="proxyServer">
-                              {i18next.t(
-                                "dht_proxy_server_name",
-                                "DHT proxy server name"
-                              )}
+                              {
+                                i18next.t(
+                                  "dht_proxy_server_name",
+                                  "DHT proxy server name"
+                                ) as string
+                              }
                             </InputLabel>
                             <Input
                               id="proxyServer"
@@ -465,10 +483,12 @@ export default function EditBlueprintConfiguration(props) {
                             }}
                           >
                             <InputLabel htmlFor="dhtProxyListUrl">
-                              {i18next.t(
-                                "dht_proxy_list_url",
-                                "DHT proxy List URL"
-                              )}
+                              {
+                                i18next.t(
+                                  "dht_proxy_list_url",
+                                  "DHT proxy List URL"
+                                ) as string
+                              }
                             </InputLabel>
                             <Input
                               id="proxyServer"
@@ -490,10 +510,12 @@ export default function EditBlueprintConfiguration(props) {
                         <FormControlLabel
                           value="disabledDHTProxy"
                           control={<StyledRadio />}
-                          label={i18next.t(
-                            "disable_dht_proxy_configuration",
-                            "Disable DHT Proxy configuration"
-                          )}
+                          label={
+                            i18next.t(
+                              "disable_dht_proxy_configuration",
+                              "Disable DHT Proxy configuration"
+                            ) as string
+                          }
                         />
                       </RadioGroup>
                     </FormControl>
diff --git a/jams-react-client/src/views/Blueprint/EditBlueprintPermissions.tsx b/jams-react-client/src/views/Blueprint/EditBlueprintPermissions.tsx
index 3ae6a983136cf56087daa7b6f827145f02b36ed8..9bd45d98af222a9618f73b0c012255712fc6f64a 100644
--- a/jams-react-client/src/views/Blueprint/EditBlueprintPermissions.tsx
+++ b/jams-react-client/src/views/Blueprint/EditBlueprintPermissions.tsx
@@ -187,7 +187,7 @@ export default function EditBlueprintPermissions(props) {
                 <PriorityHighOutlinedIcon />
               </CardIcon>
               <p className={classes.cardCategory}>
-                {i18next.t("permissions", "Permissions")}
+                {i18next.t("permissions", "Permissions") as string}
               </p>
               <h3 className={classes.cardTitle}>{props.blueprintName}</h3>
             </CardHeader>
@@ -198,7 +198,12 @@ export default function EditBlueprintPermissions(props) {
                     <Grid container spacing={2}>
                       <Grid item xs={12} sm={12} md={12}>
                         <FormLabel component="legend">
-                          {i18next.t("call_parameters", "Call parameters")}
+                          {
+                            i18next.t(
+                              "call_parameters",
+                              "Call parameters"
+                            ) as string
+                          }
                         </FormLabel>
                         <FormGroup row>
                           <FormControlLabel
@@ -215,10 +220,12 @@ export default function EditBlueprintPermissions(props) {
                                 name="videoEnabled"
                               />
                             }
-                            label={i18next.t(
-                              "allow_video_calls",
-                              "Allow video calls"
-                            )}
+                            label={
+                              i18next.t(
+                                "allow_video_calls",
+                                "Allow video calls"
+                              ) as string
+                            }
                           />
                           <CustomPopupState
                             message={i18next.t(
@@ -242,10 +249,12 @@ export default function EditBlueprintPermissions(props) {
                                 name="publicInCalls"
                               />
                             }
-                            label={i18next.t(
-                              "allow_incoming_calls_from_unknown_contacts",
-                              "Allow incoming calls from unknown contacts"
-                            )}
+                            label={
+                              i18next.t(
+                                "allow_incoming_calls_from_unknown_contacts",
+                                "Allow incoming calls from unknown contacts"
+                              ) as string
+                            }
                           />
                           <CustomPopupState
                             message={i18next.t(
@@ -269,10 +278,12 @@ export default function EditBlueprintPermissions(props) {
                                 name="autoAnswer"
                               />
                             }
-                            label={i18next.t(
-                              "auto_answer_calss",
-                              "Auto answer calls"
-                            )}
+                            label={
+                              i18next.t(
+                                "auto_answer_calss",
+                                "Auto answer calls"
+                              ) as string
+                            }
                           />
                           <CustomPopupState
                             message={i18next.t(
@@ -284,7 +295,7 @@ export default function EditBlueprintPermissions(props) {
                       </Grid>
                       <Grid item xs={12} sm={12} md={12}>
                         <FormLabel component="legend">
-                          {i18next.t("local_lan", "Local LAN")}
+                          {i18next.t("local_lan", "Local LAN") as string}
                         </FormLabel>
                         <FormGroup row>
                           <FormControlLabel
@@ -301,10 +312,12 @@ export default function EditBlueprintPermissions(props) {
                                 name="peerDiscovery"
                               />
                             }
-                            label={i18next.t(
-                              "allow_use_of_jami_in_local_lan",
-                              "Allow discovery of other peers on a local network"
-                            )}
+                            label={
+                              i18next.t(
+                                "allow_use_of_jami_in_local_lan",
+                                "Allow discovery of other peers on a local network"
+                              ) as string
+                            }
                           />
                           <CustomPopupState
                             message={i18next.t(
@@ -316,10 +329,12 @@ export default function EditBlueprintPermissions(props) {
                       </Grid>
                       <Grid item xs={12} sm={12} md={12}>
                         <FormLabel component="legend">
-                          {i18next.t(
-                            "contact_management",
-                            "Contact management"
-                          )}
+                          {
+                            i18next.t(
+                              "contact_management",
+                              "Contact management"
+                            ) as string
+                          }
                         </FormLabel>
                         <FormGroup row>
                           <FormControlLabel
@@ -336,10 +351,12 @@ export default function EditBlueprintPermissions(props) {
                                 name="allowLookup"
                               />
                             }
-                            label={i18next.t(
-                              "allow_jami_user_to_search_for_other_contacts",
-                              "Allow user to add new contacts"
-                            )}
+                            label={
+                              i18next.t(
+                                "allow_jami_user_to_search_for_other_contacts",
+                                "Allow user to add new contacts"
+                              ) as string
+                            }
                           />
                           <CustomPopupState
                             message={i18next.t(
@@ -373,10 +390,12 @@ export default function EditBlueprintPermissions(props) {
                   inputProps={{ "aria-label": "secondary checkbox" }}
                 />
               }
-              label={i18next.t(
-                "convert_your_account_into_a_rendezvous_point",
-                "Set the account as a Rendezvous point"
-              )}
+              label={
+                i18next.t(
+                  "convert_your_account_into_a_rendezvous_point",
+                  "Set the account as a Rendezvous point"
+                ) as string
+              }
             />
             <CustomPopupState
               message={i18next.t(
@@ -392,7 +411,7 @@ export default function EditBlueprintPermissions(props) {
               }}
             >
               <AddCircleOutlineIcon />{" "}
-              {i18next.t("add_moderator_to", "Add moderator to")}{" "}
+              {i18next.t("add_moderator_to", "Add moderator to") as string}{" "}
               {props.blueprintName}
             </Button>
             <CustomPopupState
@@ -407,16 +426,16 @@ export default function EditBlueprintPermissions(props) {
               <TableRow>
                 <TableCell align="left"></TableCell>
                 <TableCell align="left">
-                  {i18next.t("username", "Username")}
+                  {i18next.t("username", "Username") as string}
                 </TableCell>
                 <TableCell align="left">
-                  {i18next.t("first_name", "First name")}
+                  {i18next.t("first_name", "First name") as string}
                 </TableCell>
                 <TableCell align="left">
-                  {i18next.t("last_name", "Last name")}
+                  {i18next.t("last_name", "Last name") as string}
                 </TableCell>
                 <TableCell align="right">
-                  {i18next.t("action", "Action")}
+                  {i18next.t("action", "Action") as string}
                 </TableCell>
               </TableRow>
             </TableHead>
@@ -451,7 +470,12 @@ export default function EditBlueprintPermissions(props) {
                       color="primary"
                       onClick={() => removeModeratorFromBlueprint(user)}
                     >
-                      {i18next.t("remove_moderator", "Remove moderator")}
+                      {
+                        i18next.t(
+                          "remove_moderator",
+                          "Remove moderator"
+                        ) as string
+                      }
                     </Button>
                   </TableCell>
                 </TableRow>
diff --git a/jams-react-client/src/views/Blueprint/EditBlueprintUi.tsx b/jams-react-client/src/views/Blueprint/EditBlueprintUi.tsx
index 9968f4e9d2ab4935410f81714ce09a9c818f3179..ddea4eee709db4c2ee34df277c2c5614167cc4ea 100644
--- a/jams-react-client/src/views/Blueprint/EditBlueprintUi.tsx
+++ b/jams-react-client/src/views/Blueprint/EditBlueprintUi.tsx
@@ -184,7 +184,7 @@ export default function EditBlueprintUi({ blueprintName }) {
                 <SettingsIcon />
               </CardIcon>
               <p className={classes.cardCategory}>
-                {i18next.t("customization", "Customization")}
+                {i18next.t("customization", "Customization") as string}
               </p>
               <h3 className={classes.cardTitle}>{blueprintName}</h3>
             </CardHeader>
diff --git a/jams-react-client/src/views/Blueprint/EditBlueprintUiForm.tsx b/jams-react-client/src/views/Blueprint/EditBlueprintUiForm.tsx
index 312ba414d6a489bd044d54e4e30588d78db15102..41a8a3ae92df3e14b69fff92bf6b69d23c7846c1 100644
--- a/jams-react-client/src/views/Blueprint/EditBlueprintUiForm.tsx
+++ b/jams-react-client/src/views/Blueprint/EditBlueprintUiForm.tsx
@@ -28,7 +28,12 @@ const IsCustomizationEnabledForm = ({
             name="isCustomizationEnabled"
           />
         }
-        label={i18next.t("is_customization_enabled", "Enable customization")}
+        label={
+          i18next.t(
+            "is_customization_enabled",
+            "Enable customization"
+          ) as string
+        }
       />
     </FormGroup>
   );
@@ -48,7 +53,7 @@ const HasTitleForm = ({ uiCustomization, handleUpdateUi }) => {
             name="hasTitle"
           />
         }
-        label={i18next.t("welcome_has_title", "Title")}
+        label={i18next.t("welcome_has_title", "Title") as string}
       />
     </FormGroup>
   );
@@ -62,14 +67,16 @@ const TitleForm = ({ uiCustomization, handleUpdateUi }) => {
   return (
     <FormGroup row>
       <span>
-        {i18next.t(
-          "instruction_title",
-          "Use Jami title or personalize it (max 40 characters)"
-        )}
+        {
+          i18next.t(
+            "instruction_title",
+            "Use Jami title or personalize it (max 40 characters)"
+          ) as string
+        }
       </span>
       <TextField
         id="title"
-        placeholder={i18next.t("welcome_title", "Welcome to Jami")}
+        placeholder={i18next.t("welcome_title", "Welcome to Jami") as string}
         value={uiCustomization.title}
         onChange={(e) => {
           handleUpdateUi("title", e.target.value);
@@ -96,7 +103,7 @@ const HasDescriptionForm = ({ uiCustomization, handleUpdateUi }) => {
             }}
           />
         }
-        label={i18next.t("welcome_has_description", "Description")}
+        label={i18next.t("welcome_has_description", "Description") as string}
       />
     </FormGroup>
   );
@@ -108,17 +115,21 @@ const DescriptionForm = ({ uiCustomization, handleUpdateUi }) => {
       {uiCustomization.hasDescription && (
         <>
           <span>
-            {i18next.t(
-              "instruction_description",
-              "Use Jami description or personalize it (max 100 characters)"
-            )}
+            {
+              i18next.t(
+                "instruction_description",
+                "Use Jami description or personalize it (max 100 characters)"
+              ) as string
+            }
           </span>
           <TextField
             id="description"
-            placeholder={i18next.t(
-              "welcome_Description",
-              "Here is your Jami identifier, don't hesitate to share it in order to be contacted more easily!"
-            )}
+            placeholder={
+              i18next.t(
+                "welcome_Description",
+                "Here is your Jami identifier, don't hesitate to share it in order to be contacted more easily!"
+              ) as string
+            }
             value={uiCustomization.description}
             onChange={(e) => {
               handleUpdateUi("description", e.target.value);
@@ -147,7 +158,7 @@ const HasTipsForm = ({ uiCustomization, handleUpdateUi }) => {
             name="hasTips"
           />
         }
-        label={i18next.t("welcome_has_Tips", "Enable Tips display")}
+        label={i18next.t("welcome_has_Tips", "Enable Tips display") as string}
       />
     </FormGroup>
   );
@@ -167,7 +178,9 @@ const HasBackgroundCustomForm = ({ uiCustomization, handleUpdateUi }) => {
             name="hasBackground"
           />
         }
-        label={i18next.t("welcome_has_BackgroundCustom", "Background")}
+        label={
+          i18next.t("welcome_has_BackgroundCustom", "Background") as string
+        }
       />
     </FormGroup>
   );
@@ -183,10 +196,12 @@ const CustomBackgroundForm = ({
   return (
     <>
       <span>
-        {i18next.t(
-          "instruction_background",
-          "Choose a background color or a background image"
-        )}
+        {
+          i18next.t(
+            "instruction_background",
+            "Choose a background color or a background image"
+          ) as string
+        }
       </span>
       <FormGroup
         row
@@ -207,7 +222,7 @@ const CustomBackgroundForm = ({
         />
 
         <div style={{ padding: "0 20px" }}>
-          <Typography>{i18next.t("or", "or")}</Typography>
+          <Typography>{i18next.t("or", "or") as string}</Typography>
         </div>
 
         <div style={{ padding: "0 20px" }}>
@@ -234,7 +249,9 @@ const CustomBackgroundForm = ({
 const TipBoxAndIdColorForm = ({ uiCustomization, handleUpdateUi }) => {
   return (
     <>
-      <span>{i18next.t("tip_box_id_color", "Tip Box and Jami ID color")}</span>
+      <span>
+        {i18next.t("tip_box_id_color", "Tip Box and Jami ID color") as string}
+      </span>
       <ColorPickerPopup
         hasAlphaChannel
         color={uiCustomization.tipBoxAndIdColor}
@@ -261,15 +278,17 @@ const MainBoxColorForm = ({ uiCustomization, handleUpdateUi }) => {
               name="hasMainBoxColor"
             />
           }
-          label={i18next.t(
-            "enable_main_box",
-            "Add a box behind the title, description and Jami ID"
-          )}
+          label={
+            i18next.t(
+              "enable_main_box",
+              "Add a box behind the title, description and Jami ID"
+            ) as string
+          }
         />
       </FormGroup>
       {uiCustomization.hasMainBoxColor && (
         <>
-          <span>{i18next.t("main_box_color", "Box color")}</span>
+          <span>{i18next.t("main_box_color", "Box color") as string}</span>
           <ColorPickerPopup
             hasAlphaChannel
             color={uiCustomization.mainBoxColor}
@@ -297,7 +316,7 @@ const HasLogoForm = ({ uiCustomization, handleUpdateUi }) => {
             name="hasLogo"
           />
         }
-        label={i18next.t("welcome_has_Logo", "Logotype")}
+        label={i18next.t("welcome_has_Logo", "Logotype") as string}
       />
     </FormGroup>
   );
@@ -312,10 +331,12 @@ const LogoForm = ({
   return (
     <>
       <span>
-        {i18next.t(
-          "instruction_logo",
-          "Use Jami logotype or upload a logotype"
-        )}
+        {
+          i18next.t(
+            "instruction_logo",
+            "Use Jami logotype or upload a logotype"
+          ) as string
+        }
       </span>
 
       <FormGroup row style={{ padding: "10px 0" }}>
@@ -338,7 +359,7 @@ const LogoForm = ({
 const LogoSizeForm = ({ uiCustomization, handleUpdateUi }) => {
   return (
     <Box sx={{ width: "200px" }}>
-      <span>{i18next.t("logo_size", "Size")}</span>
+      <span>{i18next.t("logo_size", "Size") as string}</span>
       <Slider
         size="small"
         min={10}
diff --git a/jams-react-client/src/views/Blueprints/Blueprints.tsx b/jams-react-client/src/views/Blueprints/Blueprints.tsx
index 2951d03d9d609572ecfa3c8c7e2ba46da47a08d5..63013b91bd2ec9289b9675162bdf26d0232f0f0c 100644
--- a/jams-react-client/src/views/Blueprints/Blueprints.tsx
+++ b/jams-react-client/src/views/Blueprints/Blueprints.tsx
@@ -153,23 +153,25 @@ export default function Blueprints() {
         aria-describedby="alert-dialog-description"
       >
         <DialogTitle id="alert-dialog-title">
-          {i18next.t("remove_blueprint", "Remove blueprint")}
+          {i18next.t("remove_blueprint", "Remove blueprint") as string}
         </DialogTitle>
         <DialogContent>
           <DialogContentText id="alert-dialog-description">
-            {i18next.t(
-              "are_you_sure_you_want_to_delete",
-              "Are you sure you want to delete"
-            )}{" "}
+            {
+              i18next.t(
+                "are_you_sure_you_want_to_delete",
+                "Are you sure you want to delete"
+              ) as string
+            }
             <strong>{removedBlueprint}</strong> ?
           </DialogContentText>
         </DialogContent>
         <DialogActions>
           <Button onClick={() => setOpenRemoveDialog(false)} color="primary">
-            {i18next.t("cancel", "Cancel")}
+            {i18next.t("cancel", "Cancel") as string}
           </Button>
           <Button onClick={removeBlueprint} color="info" autoFocus>
-            {i18next.t("remove", "Remove")}
+            {i18next.t("remove", "Remove") as string}
           </Button>
         </DialogActions>
       </Dialog>
@@ -182,7 +184,7 @@ export default function Blueprints() {
             onClick={() => setOpen(true)}
           >
             <AddCircleOutlineIcon />{" "}
-            {i18next.t("create_blueprint", "Create blueprint")}
+            {i18next.t("create_blueprint", "Create blueprint") as string}
           </Button>
           <div className={classes.searchWrapper}>
             {!zeroBlueprint && (
@@ -216,7 +218,12 @@ export default function Blueprints() {
           <div className={classes.blueprintsNotFound}>
             <InfoIcon />
             <p style={{ marginLeft: "10px" }}>
-              {i18next.t("no_blueprints_found", "No blueprints found")}
+              {
+                i18next.t(
+                  "no_blueprints_found",
+                  "No blueprints found"
+                ) as string
+              }
             </p>
           </div>
         ) : (
@@ -228,7 +235,10 @@ export default function Blueprints() {
                     <h3 className={classes.cardTitle}>
                       {blueprint.name
                         ? blueprint.name
-                        : i18next.t("no_blueprint_name", "No blueprint name")}
+                        : (i18next.t(
+                            "no_blueprint_name",
+                            "No blueprint name"
+                          ) as string)}
                     </h3>
                     <ul>
                       <li>
@@ -239,7 +249,7 @@ export default function Blueprints() {
                               fontSize="small"
                               style={{ marginRight: "10px" }}
                             />
-                            {i18next.t("rendezvous", "Rendezvous")}
+                            {i18next.t("rendezvous", "Rendezvous") as string}
                           </p>
                         ) : (
                           <p>
@@ -247,7 +257,7 @@ export default function Blueprints() {
                               fontSize="small"
                               style={{ marginRight: "10px" }}
                             />
-                            {i18next.t("standalone", "Standalone")}
+                            {i18next.t("standalone", "Standalone") as string}
                           </p>
                         )}
                       </li>
diff --git a/jams-react-client/src/views/Blueprints/CreateBlueprintDialog.tsx b/jams-react-client/src/views/Blueprints/CreateBlueprintDialog.tsx
index 946cfd154d9b096e0d16d15d31cd1e3e5b7d80d4..00aa17700b0a282a381e78e1044243bf019e8e3e 100644
--- a/jams-react-client/src/views/Blueprints/CreateBlueprintDialog.tsx
+++ b/jams-react-client/src/views/Blueprints/CreateBlueprintDialog.tsx
@@ -26,7 +26,10 @@ const getHelperText = (disableCreate, blueprintName) => {
     );
   }
   if (disableCreate && blueprintName.length === 0) {
-    return i18next.t("blueprint_name_is_empty", "Blueprint name is empty");
+    return i18next.t(
+      "blueprint_name_is_empty",
+      "Blueprint name is empty"
+    ) as string;
   }
 
   return "";
@@ -119,7 +122,7 @@ export default function CreateBlueprintDialog({ open, setOpen }) {
       aria-describedby="alert-dialog-description"
     >
       <DialogTitle id="alert-dialog-title">
-        {i18next.t("create_blueprint", "Create blueprint")}
+        {i18next.t("create_blueprint", "Create blueprint") as string}
       </DialogTitle>
       <DialogContent>
         <TextField
@@ -127,7 +130,7 @@ export default function CreateBlueprintDialog({ open, setOpen }) {
           error={blueprintNameExists}
           margin="dense"
           id="blueprintName"
-          label={i18next.t("blueprint_name", "Blueprint name")}
+          label={i18next.t("blueprint_name", "Blueprint name") as string}
           helperText={helperText}
           type="text"
           variant="standard"
@@ -146,14 +149,14 @@ export default function CreateBlueprintDialog({ open, setOpen }) {
       </DialogContent>
       <DialogActions>
         <Button onClick={handleClose} color="primary">
-          {i18next.t("cancel", "Cancel")}
+          {i18next.t("cancel", "Cancel") as string}
         </Button>
         <Button
           onClick={handleCreateBlueprint}
           color="info"
           disabled={disableCreate}
         >
-          {i18next.t("create_blueprint", "Create blueprint")}
+          {i18next.t("create_blueprint", "Create blueprint") as string}
         </Button>
       </DialogActions>
     </Dialog>
diff --git a/jams-react-client/src/views/Contacts/Contacts.tsx b/jams-react-client/src/views/Contacts/Contacts.tsx
index cbe92c23d92df0f63e788a46f70cced73e884741..d51149c6dbb0f9dc58d390227f6026d8177025a9 100644
--- a/jams-react-client/src/views/Contacts/Contacts.tsx
+++ b/jams-react-client/src/views/Contacts/Contacts.tsx
@@ -304,7 +304,7 @@ export default function Users(props) {
         openDrawer={openDrawer}
         setOpenDrawer={setOpenDrawer}
         direction="right"
-        placeholder={i18next.t("add_contact", "Add contact…")}
+        placeholder={i18next.t("add_contact", "Add contact…") as string}
         searchTargets={searchContacts}
         targets={users}
         existingTargets={contacts}
@@ -318,26 +318,28 @@ export default function Users(props) {
         aria-describedby="alert-dialog-description"
       >
         <DialogTitle id="alert-dialog-title">
-          {i18next.t("remove_contact", "Remove contact")}
+          {i18next.t("remove_contact", "Remove contact") as string}
         </DialogTitle>
         <DialogContent>
           <DialogContentText id="alert-dialog-description">
-            {i18next.t(
-              "are_you_sure_you_want_to_remove",
-              "Are you sure you want to remove"
-            )}
+            {
+              i18next.t(
+                "are_you_sure_you_want_to_remove",
+                "Are you sure you want to remove"
+              ) as string
+            }
             <strong>{" " + removedContactName + " "}</strong>
-            {i18next.t("from", "from")}
+            {i18next.t("from", "from") as string}
             {" " + props.username + " "}
-            {i18next.t("contacts", "contacts")}?
+            {i18next.t("contacts", "contacts") as string}?
           </DialogContentText>
         </DialogContent>
         <DialogActions>
           <Button onClick={() => setOpen(false)} color="primary">
-            {i18next.t("cancel", "Cancel")}
+            {i18next.t("cancel", "Cancel") as string}
           </Button>
           <Button onClick={removeContact} color="info" autoFocus>
-            {i18next.t("remove", "Remove")}
+            {i18next.t("remove", "Remove") as string}
           </Button>
         </DialogActions>
       </Dialog>
@@ -354,7 +356,7 @@ export default function Users(props) {
                 }}
               >
                 <AddCircleOutlineIcon />{" "}
-                {i18next.t("add_a_contact", "Add contact")}
+                {i18next.t("add_a_contact", "Add contact") as string}
               </Button>
             )}
           </div>
@@ -369,7 +371,10 @@ export default function Users(props) {
                   "Search contact fields (URI, firstname, lastname)"
                 ),
                 inputProps: {
-                  "aria-label": i18next.t("search_contacts", "Search contacts"),
+                  "aria-label": i18next.t(
+                    "search_contacts",
+                    "Search contacts"
+                  ) as string,
                 },
                 onKeyUp: (e) => setSearchValue(e.target.value),
               }}
@@ -499,7 +504,8 @@ export default function Users(props) {
             </GridItem>
           ))}
         {contacts === [] &&
-          props.username + i18next.t("has_no_contacts", " has no contacts")}
+          ((props.username +
+            i18next.t("has_no_contacts", " has no contacts")) as string)}
       </GridContainer>
     </div>
   );
diff --git a/jams-react-client/src/views/Groups/CreateGroupDialog.tsx b/jams-react-client/src/views/Groups/CreateGroupDialog.tsx
index 23288deefbd897f509086540eb6edb551509911a..aac99f20874ff9f8dea946471dd32c10947fe5fc 100644
--- a/jams-react-client/src/views/Groups/CreateGroupDialog.tsx
+++ b/jams-react-client/src/views/Groups/CreateGroupDialog.tsx
@@ -27,10 +27,13 @@ import Button from "components/CustomButtons/Button";
 
 const getHelperText = (disableCreate, groupName) => {
   if (disableCreate && groupName.length > 0) {
-    return i18next.t("group_name_already_exists", "Group name already exists!");
+    return i18next.t(
+      "group_name_already_exists",
+      "Group name already exists!"
+    ) as string;
   }
   if (disableCreate && groupName.length === 0) {
-    return i18next.t("group_name_is_empty", "Group name is empty");
+    return i18next.t("group_name_is_empty", "Group name is empty") as string;
   }
 
   return "";
@@ -156,7 +159,7 @@ export default function CreateGroupDialog({
       aria-describedby="alert-dialog-description"
     >
       <DialogTitle id="alert-dialog-title">
-        {i18next.t("create_group", "Create group")}
+        {i18next.t("create_group", "Create group") as string}
       </DialogTitle>
       <DialogContent>
         <Grid container spacing={2}>
@@ -165,7 +168,7 @@ export default function CreateGroupDialog({
               autoFocus
               error={groupNameExits}
               id="groupName"
-              label={i18next.t("group_name", "Group name")}
+              label={i18next.t("group_name", "Group name") as string}
               helperText={helperText}
               type="text"
               fullWidth
@@ -187,7 +190,9 @@ export default function CreateGroupDialog({
             <TextField
               select
               fullWidth
-              label={i18next.t("select_blueprint", "Select a blueprint")}
+              label={
+                i18next.t("select_blueprint", "Select a blueprint") as string
+              }
               value={selectedBlueprint.value}
               onChange={handleBlueprintsChange}
               disabled={blueprints.length === 0}
diff --git a/jams-react-client/src/views/Groups/EditGroup.tsx b/jams-react-client/src/views/Groups/EditGroup.tsx
index 7f541d37ec198fdb73556c452806d8c313066a6c..ef28b95171cd267781cba352cdf625328afaeb03 100644
--- a/jams-react-client/src/views/Groups/EditGroup.tsx
+++ b/jams-react-client/src/views/Groups/EditGroup.tsx
@@ -365,7 +365,9 @@ export default function EditGroup(props) {
         openDrawer={openDrawer}
         setOpenDrawer={setOpenDrawer}
         direction="right"
-        placeholder={i18next.t("add_user_to_group", "Add user to group ...")}
+        placeholder={
+          i18next.t("add_user_to_group", "Add user to group ...") as string
+        }
         searchTargets={searchUsers}
         targets={users}
         existingTargets={groupMembers}
@@ -380,7 +382,7 @@ export default function EditGroup(props) {
                 <EditIcon />
               </CardIcon>
               <p className={classes.cardCategory}>
-                {i18next.t("edit_group", "Edit group")}
+                {i18next.t("edit_group", "Edit group") as string}
               </p>
               <h3 className={classes.cardTitle}>{name}</h3>
             </CardHeader>
@@ -427,7 +429,12 @@ export default function EditGroup(props) {
                       className={classes.inputBottomMargin}
                       htmlFor="blueprint"
                     >
-                      {i18next.t("select_blueprint", "Select a blueprint")}
+                      {
+                        i18next.t(
+                          "select_blueprint",
+                          "Select a blueprint"
+                        ) as string
+                      }
                     </InputLabel>
                     <FormControl className={classes.margin} fullWidth>
                       <Select
@@ -454,24 +461,24 @@ export default function EditGroup(props) {
               setOpenDrawer(true);
             }}
           >
-            <AddCircleOutlineIcon /> {i18next.t("add_user_to", "Add user to")}{" "}
-            {name}
+            <AddCircleOutlineIcon />{" "}
+            {i18next.t("add_user_to", "Add user to") as string} {name}
           </Button>
           <Table className={classes.table}>
             <TableHead>
               <TableRow>
                 <TableCell align="left"></TableCell>
                 <TableCell align="left">
-                  {i18next.t("username", "Username")}
+                  {i18next.t("username", "Username") as string}
                 </TableCell>
                 <TableCell align="left">
-                  {i18next.t("first_name", "First name")}
+                  {i18next.t("first_name", "First name") as string}
                 </TableCell>
                 <TableCell align="left">
-                  {i18next.t("last_name", "Last name")}
+                  {i18next.t("last_name", "Last name") as string}
                 </TableCell>
                 <TableCell align="right">
-                  {i18next.t("action", "Action")}
+                  {i18next.t("action", "Action") as string}
                 </TableCell>
               </TableRow>
             </TableHead>
@@ -505,7 +512,7 @@ export default function EditGroup(props) {
                       color="primary"
                       onClick={() => deleteUserFromGroup(user)}
                     >
-                      {i18next.t("remove_user", "Remove user")}
+                      {i18next.t("remove_user", "Remove user") as string}
                     </Button>
                   </TableCell>
                 </TableRow>
diff --git a/jams-react-client/src/views/Groups/Groups.tsx b/jams-react-client/src/views/Groups/Groups.tsx
index 9d0ae494f19b19473153080188d46d6e7c9af963..0a2efa756c16eb480f5f74ca2a2b2264035e7396 100644
--- a/jams-react-client/src/views/Groups/Groups.tsx
+++ b/jams-react-client/src/views/Groups/Groups.tsx
@@ -181,10 +181,12 @@ export default function Groups() {
     return (
       <div>
         <h4>
-          {i18next.t(
-            "you_are_not_allowed_to_access_this_section",
-            "You are not allowed to access this section. Please contact your administrator to get administrator privileges."
-          )}
+          {
+            i18next.t(
+              "you_are_not_allowed_to_access_this_section",
+              "You are not allowed to access this section. Please contact your administrator to get administrator privileges."
+            ) as string
+          }
         </h4>
       </div>
     );
@@ -203,23 +205,25 @@ export default function Groups() {
           aria-describedby="alert-dialog-description"
         >
           <DialogTitle id="alert-dialog-title">
-            {i18next.t("remove_group", "Remove group")}
+            {i18next.t("remove_group", "Remove group") as string}
           </DialogTitle>
           <DialogContent>
             <DialogContentText id="alert-dialog-description">
-              {i18next.t(
-                "are_you_sure_you_want_to_delete",
-                "Are you sure you want to delete"
-              )}{" "}
+              {
+                i18next.t(
+                  "are_you_sure_you_want_to_delete",
+                  "Are you sure you want to delete"
+                ) as string
+              }{" "}
               <strong>{removedGroup.name}</strong> ?
             </DialogContentText>
           </DialogContent>
           <DialogActions>
             <Button onClick={() => setOpenRemoveDialog(false)} color="primary">
-              {i18next.t("cancel", "Cancel")}
+              {i18next.t("cancel", "Cancel") as string}
             </Button>
             <Button onClick={removeGroup} color="info" autoFocus>
-              {i18next.t("remove", "Remove")}
+              {i18next.t("remove", "Remove") as string}
             </Button>
           </DialogActions>
         </Dialog>
@@ -233,7 +237,7 @@ export default function Groups() {
                 onClick={() => setOpenCreate(true)}
               >
                 <AddCircleOutlineIcon />{" "}
-                {i18next.t("create_group", "Create group")}
+                {i18next.t("create_group", "Create group") as string}
               </Button>
             }
             <div className={classes.searchWrapper}>
@@ -248,7 +252,10 @@ export default function Groups() {
                       "Search groups…"
                     ),
                     inputProps: {
-                      "aria-label": i18next.t("search_groups", "Search groups"),
+                      "aria-label": i18next.t(
+                        "search_groups",
+                        "Search groups"
+                      ) as string,
                     },
                     onKeyUp: (e) => setSearchValue(e.target.value),
                   }}
@@ -266,7 +273,7 @@ export default function Groups() {
             <div className={classes.groupsNotFound}>
               <InfoIcon />{" "}
               <p style={{ marginLeft: "10px" }}>
-                {i18next.t("no_groups_found", "No groups Found")}
+                {i18next.t("no_groups_found", "No groups Found") as string}
               </p>
             </div>
           ) : (
@@ -295,7 +302,7 @@ export default function Groups() {
                             <strong style={{ marginRight: "5px" }}>
                               {group.groupMembersLength}
                             </strong>
-                            {i18next.t("users", "Users")}
+                            {i18next.t("users", "Users") as string}
                           </li>
                           <li>
                             <MailOutlineIcon
@@ -303,7 +310,7 @@ export default function Groups() {
                               style={{ marginRight: "10px" }}
                             />
                             <strong style={{ marginRight: "5px" }}>
-                              {i18next.t("blueprint", "Blueprint")}
+                              {i18next.t("blueprint", "Blueprint") as string}
                             </strong>
                             {group.blueprint}
                           </li>
diff --git a/jams-react-client/src/views/Settings/General.tsx b/jams-react-client/src/views/Settings/General.tsx
index 37d376c0afcbac07db7fd723c686b3de49d010ee..5b77b9121159f44e458268b6160295060f5a0ea2 100644
--- a/jams-react-client/src/views/Settings/General.tsx
+++ b/jams-react-client/src/views/Settings/General.tsx
@@ -81,10 +81,12 @@ export default function General(props) {
       .catch((error) => {
         props.setSeverity("error");
         props.setErrorMessage(
-          i18next.t("updating_user", "Updating user ") +
+          (((i18next.t("updating_user", "Updating user ") as string) +
             props.username +
-            i18next.t("password_failed", " password failed with error: ") +
-            error
+            i18next.t(
+              "password_failed",
+              " password failed with error: "
+            )) as string) + error
         );
         props.setError(true);
       });
@@ -105,14 +107,16 @@ export default function General(props) {
 
   const passwordSchema = Yup.object().shape({
     password: Yup.string().required(
-      i18next.t("password_is_required", "Password is required!")
+      i18next.t("password_is_required", "Password is required!") as string
     ),
     confirmPassword: Yup.string()
       .oneOf(
         [Yup.ref("password")],
-        i18next.t("password_must_match", "Passwords must match")
+        i18next.t("password_must_match", "Passwords must match") as string
       )
-      .required(i18next.t("password_is_required", "Password is required!")),
+      .required(
+        i18next.t("password_is_required", "Password is required!") as string
+      ),
   });
 
   const handleMouseDownPassword = () => {
@@ -149,7 +153,12 @@ export default function General(props) {
                   <Grid container spacing={2}>
                     <Grid item lg={6} style={{ display: "flex" }}>
                       <Typography component="p" gutterBottom color="primary">
-                        {i18next.t("change_language", "Change language")}
+                        {
+                          i18next.t(
+                            "change_language",
+                            "Change language"
+                          ) as string
+                        }
                       </Typography>
                     </Grid>
                     <Grid item lg={6}>
@@ -157,17 +166,21 @@ export default function General(props) {
                     </Grid>
                     <Grid item lg={6}>
                       <Typography component="p" gutterBottom color="primary">
-                        {i18next.t(
-                          "enter_the_following_information_below_to_change_your_admin_password",
-                          "Enter the following information to change your admin password."
-                        )}
+                        {
+                          i18next.t(
+                            "enter_the_following_information_below_to_change_your_admin_password",
+                            "Enter the following information to change your admin password."
+                          ) as string
+                        }
                       </Typography>
                     </Grid>
                     <Grid item lg={6}>
                       <FormikField
                         name="password"
-                        label={i18next.t("password", "Password")}
-                        placeholder={i18next.t("password", "Password")}
+                        label={i18next.t("password", "Password") as string}
+                        placeholder={
+                          i18next.t("password", "Password") as string
+                        }
                         type={passwordVisible ? "text" : "password"}
                         startAdornment={
                           <InputAdornment position="start">
@@ -255,7 +268,7 @@ export default function General(props) {
                           setGenerated(true);
                         }}
                       >
-                        {i18next.t("generate", "Generate")}
+                        {i18next.t("generate", "Generate") as string}
                       </Button>
                       <CopyToClipboard
                         text={values.password}
@@ -270,17 +283,22 @@ export default function General(props) {
                           className={classes.button}
                           startIcon={<FileCopyIcon />}
                         >
-                          {i18next.t("copy_to_clipboard", "Copy to clipboard")}
+                          {
+                            i18next.t(
+                              "copy_to_clipboard",
+                              "Copy to clipboard"
+                            ) as string
+                          }
                         </Button>
                       </CopyToClipboard>
                       {copied ? (
                         <span style={{ marginLeft: "10px" }}>
-                          {i18next.t("copied", "Copied")}
+                          {i18next.t("copied", "Copied") as string}
                         </span>
                       ) : null}
                       {generated ? (
                         <span style={{ marginLeft: "10px" }}>
-                          {i18next.t("generated", "Generated")}
+                          {i18next.t("generated", "Generated") as string}
                         </span>
                       ) : null}
                     </Grid>
@@ -294,10 +312,12 @@ export default function General(props) {
                         disabled={!isValid || !dirty}
                         className={classes.submit}
                       >
-                        {i18next.t(
-                          "change_admin_password",
-                          "Change administrator password"
-                        )}
+                        {
+                          i18next.t(
+                            "change_admin_password",
+                            "Change administrator password"
+                          ) as string
+                        }
                       </Button>
                     </Grid>
                     <Grid item lg={6}>
diff --git a/jams-react-client/src/views/Settings/Settings.tsx b/jams-react-client/src/views/Settings/Settings.tsx
index 9a1c0dcf477e855c3a0a812bca4c4adc2238079b..e98b17dff7ad105d9193a9f1291c0a6aba9bf1f6 100644
--- a/jams-react-client/src/views/Settings/Settings.tsx
+++ b/jams-react-client/src/views/Settings/Settings.tsx
@@ -67,10 +67,12 @@ export default function Settings() {
     return (
       <div>
         <h4>
-          {i18next.t(
-            "you_are_not_allowed_to_access_this_section",
-            "You are not allowed to access this section. Please contact your administrator to get administrator privileges."
-          )}
+          {
+            i18next.t(
+              "you_are_not_allowed_to_access_this_section",
+              "You are not allowed to access this section. Please contact your administrator to get administrator privileges."
+            ) as string
+          }
         </h4>
       </div>
     );
@@ -86,11 +88,11 @@ export default function Settings() {
             indicatorColor="secondary"
           >
             <Tab
-              label={i18next.t("general", "General")}
+              label={i18next.t("general", "General") as string}
               {...a11yProps(value, 0)}
             />
             <Tab
-              label={i18next.t("subscription", "Subscription")}
+              label={i18next.t("subscription", "Subscription") as string}
               {...a11yProps(value, 1)}
             />
           </Tabs>
diff --git a/jams-react-client/src/views/Settings/Subscription.tsx b/jams-react-client/src/views/Settings/Subscription.tsx
index 3a30ade81bf93e19086c286d785ead9b7d411f31..0533c56b4fc78059fe81cc592a8f5020dba3b99c 100644
--- a/jams-react-client/src/views/Settings/Subscription.tsx
+++ b/jams-react-client/src/views/Settings/Subscription.tsx
@@ -142,10 +142,12 @@ export default function Subscription(props) {
                 <Grid container spacing={3}>
                   <Grid item lg={6}>
                     <Typography component="p" gutterBottom color="primary">
-                      {i18next.t(
-                        "paste_your_jams_enterprise_subscription_code_received_from_jami",
-                        "Paste your JAMS Enterprise subscription code received from the Jami store."
-                      )}
+                      {
+                        i18next.t(
+                          "paste_your_jams_enterprise_subscription_code_received_from_jami",
+                          "Paste your JAMS Enterprise subscription code received from the Jami store."
+                        ) as string
+                      }
                     </Typography>
                   </Grid>
                   <Grid item lg={6}>
@@ -155,10 +157,12 @@ export default function Subscription(props) {
                       required
                       fullWidth
                       id="subscriptionCode"
-                      label={i18next.t(
-                        "subscription_code",
-                        "Subscription Code"
-                      )}
+                      label={
+                        i18next.t(
+                          "subscription_code",
+                          "Subscription Code"
+                        ) as string
+                      }
                       name="subscriptionCode"
                       autoComplete="subscriptionCode"
                       autoFocus
@@ -175,7 +179,7 @@ export default function Subscription(props) {
                       color="primary"
                       className={classes.submit}
                     >
-                      {i18next.t("register", "Register")}
+                      {i18next.t("register", "Register") as string}
                     </Button>
                   </Grid>
                 </Grid>
@@ -189,10 +193,12 @@ export default function Subscription(props) {
     return (
       <div>
         <p>
-          {i18next.t(
-            "your_license_is_already_activated",
-            "Your subscription is already activated!"
-          )}
+          {
+            i18next.t(
+              "your_license_is_already_activated",
+              "Your subscription is already activated!"
+            ) as string
+          }
         </p>
       </div>
     );
diff --git a/jams-react-client/src/views/UserProfile/AdminAddUserToGroup.tsx b/jams-react-client/src/views/UserProfile/AdminAddUserToGroup.tsx
index d6f05f2b37834910e3220f324e7347b78c25e672..60fcdea04113bf9eb2d5716ce1ca51dd1791a5bb 100644
--- a/jams-react-client/src/views/UserProfile/AdminAddUserToGroup.tsx
+++ b/jams-react-client/src/views/UserProfile/AdminAddUserToGroup.tsx
@@ -109,7 +109,9 @@ const AdminAddUserToGroup: FC<AdminAddUserToGroupProps> = ({
         openDrawer={openDrawer}
         setOpenDrawer={setOpenDrawer}
         direction="right"
-        placeholder={i18next.t("add_user_to_group", "Add user to group ...")}
+        placeholder={
+          i18next.t("add_user_to_group", "Add user to group ...") as string
+        }
         searchTargets={setSearchValue}
         targets={groups.filter((group) => group.name.includes(searchValue))}
         existingTargets={groupMemberships}
@@ -125,16 +127,16 @@ const AdminAddUserToGroup: FC<AdminAddUserToGroupProps> = ({
           }}
         >
           <AddCircleOutlineIcon />{" "}
-          {i18next.t("add_user_to_a_group", "Add user to a group")}
+          {i18next.t("add_user_to_a_group", "Add user to a group") as string}
         </Button>
         <Table className={classes.table}>
           <TableHead>
             <TableRow>
               <TableCell align="left">
-                {i18next.t("group_name", "Group name")}
+                {i18next.t("group_name", "Group name") as string}
               </TableCell>
               <TableCell align="right">
-                {i18next.t("action", "Action")}
+                {i18next.t("action", "Action") as string}
               </TableCell>
             </TableRow>
           </TableHead>
@@ -152,7 +154,12 @@ const AdminAddUserToGroup: FC<AdminAddUserToGroupProps> = ({
                     color="primary"
                     onClick={() => removeUserFromGroup(group)}
                   >
-                    {i18next.t("remove_from_group", "Remove from group")}
+                    {
+                      i18next.t(
+                        "remove_from_group",
+                        "Remove from group"
+                      ) as string
+                    }
                   </Button>
                 </TableCell>
               </TableRow>
diff --git a/jams-react-client/src/views/UserProfile/DisplayUserProfile.tsx b/jams-react-client/src/views/UserProfile/DisplayUserProfile.tsx
index 7881b01f4c93bb93ec9becc42b62473e8c0c94d8..2c85ca411c1b3dda9575048b1dd9edad894b793e 100644
--- a/jams-react-client/src/views/UserProfile/DisplayUserProfile.tsx
+++ b/jams-react-client/src/views/UserProfile/DisplayUserProfile.tsx
@@ -316,8 +316,8 @@ const DisplayUserProfile: FC<DisplayUserProfileProps> = ({
 
   const getUserStatus = () => {
     const label = revoked
-      ? i18next.t("revoked", "Revoked")
-      : i18next.t("active", "Active");
+      ? (i18next.t("revoked", "Revoked") as string)
+      : (i18next.t("active", "Active") as string);
     return (
       <Chip
         style={{ flex: 1 }}
@@ -377,20 +377,22 @@ const DisplayUserProfile: FC<DisplayUserProfileProps> = ({
         aria-describedby="alert-dialog-description"
       >
         <DialogTitle id="alert-dialog-title">
-          {i18next.t("revoke_user_account", "Revoke user account")}
+          {i18next.t("revoke_user_account", "Revoke user account") as string}
         </DialogTitle>
         <DialogContent>
           <DialogContentText id="alert-dialog-description">
-            {i18next.t(
-              "are_you_sure_want_revoke",
-              "Are you sure you want to revoke"
-            )}{" "}
+            {
+              i18next.t(
+                "are_you_sure_want_revoke",
+                "Are you sure you want to revoke"
+              ) as string
+            }{" "}
             <strong>{revokedUser}</strong> ?
           </DialogContentText>
         </DialogContent>
         <DialogActions>
           <Button onClick={handleClose} color="primary">
-            {i18next.t("cancel", "Cancel")}
+            {i18next.t("cancel", "Cancel") as string}
           </Button>
           <Button
             onClick={revokeUser}
@@ -398,7 +400,7 @@ const DisplayUserProfile: FC<DisplayUserProfileProps> = ({
             className={classes.whiteButtonText}
             autoFocus
           >
-            {i18next.t("revoke", "Revoke")}
+            {i18next.t("revoke", "Revoke") as string}
           </Button>
         </DialogActions>
       </Dialog>
@@ -454,7 +456,8 @@ const DisplayUserProfile: FC<DisplayUserProfileProps> = ({
                         className={classes.whiteButtonText}
                         onClick={() => setDisplayUser(false)}
                       >
-                        <EditIcon /> {i18next.t("edit_profile", "Edit profile")}
+                        <EditIcon />{" "}
+                        {i18next.t("edit_profile", "Edit profile") as string}
                       </Button>
                     )}
                   </Grid>
@@ -468,7 +471,12 @@ const DisplayUserProfile: FC<DisplayUserProfileProps> = ({
                         }}
                       >
                         <VpnKeyIcon />{" "}
-                        {i18next.t("change_password", "Change password")}
+                        {
+                          i18next.t(
+                            "change_password",
+                            "Change password"
+                          ) as string
+                        }
                       </Button>
                     )}
                   </Grid>
@@ -483,7 +491,7 @@ const DisplayUserProfile: FC<DisplayUserProfileProps> = ({
                         onClick={() => handleClickOpen(user.username)}
                       >
                         <DeleteIcon fontSize="small" />{" "}
-                        {i18next.t("revoke_user", "Revoke user")}
+                        {i18next.t("revoke_user", "Revoke user") as string}
                       </Button>
                     )}
                   </Grid>
diff --git a/jams-react-client/src/views/UserProfile/EditCreateUserProfile.tsx b/jams-react-client/src/views/UserProfile/EditCreateUserProfile.tsx
index b74695f7babab2812b077232fb5e7f873727f95b..2b1fbefd785b9287856fc84d8d5aa73346414843 100644
--- a/jams-react-client/src/views/UserProfile/EditCreateUserProfile.tsx
+++ b/jams-react-client/src/views/UserProfile/EditCreateUserProfile.tsx
@@ -483,9 +483,17 @@ export default function EditCreateUserProfile(props) {
 
   const EditCreateSchema = Yup.object().shape({
     username: Yup.string()
-      .min(3, i18next.t("minimum_3_characters", "Minimum 3 characters!"))
-      .max(32, i18next.t("maximum_32_characters", "Maximum 32 characters!"))
-      .required(i18next.t("username_is_required", "Username is required!"))
+      .min(
+        3,
+        i18next.t("minimum_3_characters", "Minimum 3 characters!") as string
+      )
+      .max(
+        32,
+        i18next.t("maximum_32_characters", "Maximum 32 characters!") as string
+      )
+      .required(
+        i18next.t("username_is_required", "Username is required!") as string
+      )
       .matches(
         /^[A-Za-z_][A-Za-z0-9_]*$/,
         i18next.t(
@@ -495,22 +503,22 @@ export default function EditCreateUserProfile(props) {
       ),
     password: props.createUser
       ? Yup.string().required(
-          i18next.t("password_is_required", "Password is required!")
+          i18next.t("password_is_required", "Password is required!") as string
         )
       : null,
     confirmPassword: props.createUser
       ? Yup.string().oneOf(
           [Yup.ref("password"), null],
-          i18next.t("password_must_match", "Passwords must match")
+          i18next.t("password_must_match", "Passwords must match") as string
         )
       : null,
     firstName: Yup.string().min(
       2,
-      i18next.t("first_name_is_too_short", "First name is too short!")
+      i18next.t("first_name_is_too_short", "First name is too short!") as string
     ),
     lastName: Yup.string().min(
       2,
-      i18next.t("last_name_is_too_short", "Last Name is too short!")
+      i18next.t("last_name_is_too_short", "Last Name is too short!") as string
     ),
     email: Yup.string().email(i18next.t("invalid_email", "Invalid email!")),
     profilePicture: Yup.string(),
@@ -523,16 +531,16 @@ export default function EditCreateUserProfile(props) {
     ),
     faxNumber: Yup.string().matches(
       /^(\+\d{1,2}\s?)?1?-?\.?\s?\(?\d{3}\)?[\s.-]?\d{3}[\s.-]?\d{4}$/,
-      i18next.t("fax_not_valid", "Fax number not valid!")
+      i18next.t("fax_not_valid", "Fax number not valid!") as string
     ),
     phoneNumber: Yup.string().matches(
       /^(\+\d{1,2}\s?)?1?-?\.?\s?\(?\d{3}\)?[\s.-]?\d{3}[\s.-]?\d{4}$/,
-      i18next.t("phone_not_valid", "Phone number not valid!")
+      i18next.t("phone_not_valid", "Phone number not valid!") as string
     ),
     phoneNumberExtension: Yup.number().positive().integer(),
     mobileNumber: Yup.string().matches(
       /^(\+\d{1,2}\s?)?1?-?\.?\s?\(?\d{3}\)?[\s.-]?\d{3}[\s.-]?\d{4}$/,
-      i18next.t("mobile_not_valid", "Mobile number not valid!")
+      i18next.t("mobile_not_valid", "Mobile number not valid!") as string
     ),
   });
 
@@ -546,7 +554,7 @@ export default function EditCreateUserProfile(props) {
         classes={{ paper: classes.dialogPaper }}
       >
         <DialogTitle id="alert-dialog-title">
-          {i18next.t("crop_image", "Crop image")}
+          {i18next.t("crop_image", "Crop image") as string}
         </DialogTitle>
         <DialogContent>
           <div className={classes.cropContainer}>
@@ -569,7 +577,7 @@ export default function EditCreateUserProfile(props) {
                 variant="overline"
                 classes={{ root: classes.sliderLabel }}
               >
-                {i18next.t("zoom", "Zoom")}
+                {i18next.t("zoom", "Zoom") as string}
               </Typography>
               <Slider
                 value={zoom}
@@ -586,7 +594,7 @@ export default function EditCreateUserProfile(props) {
                 variant="overline"
                 classes={{ root: classes.sliderLabel }}
               >
-                {i18next.t("rotation", "Rotation")}
+                {i18next.t("rotation", "Rotation") as string}
               </Typography>
               <Slider
                 value={rotation}
@@ -607,7 +615,7 @@ export default function EditCreateUserProfile(props) {
             className={classes.whiteButtonText}
             autoFocus
           >
-            {i18next.t("validate", "Validate")}
+            {i18next.t("validate", "Validate") as string}
           </Button>
         </DialogActions>
       </Dialog>
@@ -633,11 +641,14 @@ export default function EditCreateUserProfile(props) {
                     >
                       <p className={classes.cardCategory}>
                         {props.createUser
-                          ? i18next.t(
+                          ? (i18next.t(
                               "create_new_profile",
                               "Create new profile"
-                            )
-                          : i18next.t("edit_profile", "Edit profile")}
+                            ) as string)
+                          : (i18next.t(
+                              "edit_profile",
+                              "Edit profile"
+                            ) as string)}
                       </p>
                       {props.createUser ? (
                         ""
@@ -687,18 +698,24 @@ export default function EditCreateUserProfile(props) {
                               >
                                 <PhotoCamera />
                               </IconButton>{" "}
-                              {i18next.t(
-                                "change_profile_image",
-                                "Change profile image"
-                              )}
+                              {
+                                i18next.t(
+                                  "change_profile_image",
+                                  "Change profile image"
+                                ) as string
+                              }
                             </label>
                           </Grid>
                           {props.createUser && (
                             <Grid item xs={12} sm={12} md={6}>
                               <FormikField
                                 name="username"
-                                label={i18next.t("username", "Username")}
-                                placeholder={i18next.t("username", "Username")}
+                                label={
+                                  i18next.t("username", "Username") as string
+                                }
+                                placeholder={
+                                  i18next.t("username", "Username") as string
+                                }
                                 startAdornment={
                                   <InputAdornment position="start">
                                     <AccountCircleIcon />
@@ -732,8 +749,12 @@ export default function EditCreateUserProfile(props) {
                               <FormikField
                                 type={passwordVisible ? "text" : "password"}
                                 name="password"
-                                label={i18next.t("password", "Password")}
-                                placeholder={i18next.t("password", "Password")}
+                                label={
+                                  i18next.t("password", "Password") as string
+                                }
+                                placeholder={
+                                  i18next.t("password", "Password") as string
+                                }
                                 startAdornment={
                                   <InputAdornment position="start">
                                     <VpnKeyIcon />
@@ -835,7 +856,7 @@ export default function EditCreateUserProfile(props) {
                                   setGenerated(true);
                                 }}
                               >
-                                {i18next.t("generate", "Generate")}
+                                {i18next.t("generate", "Generate") as string}
                               </Button>
                               <CopyToClipboard
                                 text={values.password}
@@ -851,20 +872,27 @@ export default function EditCreateUserProfile(props) {
                                   className={classes.button}
                                   startIcon={<FileCopyIcon />}
                                 >
-                                  {i18next.t(
-                                    "copy_to_clipboard",
-                                    "Copy to clipboard"
-                                  )}
+                                  {
+                                    i18next.t(
+                                      "copy_to_clipboard",
+                                      "Copy to clipboard"
+                                    ) as string
+                                  }
                                 </Button>
                               </CopyToClipboard>
                               {copied ? (
                                 <span style={{ marginLeft: "10px" }}>
-                                  {i18next.t("copied", "Copied")}
+                                  {i18next.t("copied", "Copied") as string}
                                 </span>
                               ) : null}
                               {generated ? (
                                 <span style={{ marginLeft: "10px" }}>
-                                  {i18next.t("generated", "Generated")}
+                                  {
+                                    i18next.t(
+                                      "generated",
+                                      "Generated"
+                                    ) as string
+                                  }
                                 </span>
                               ) : null}
                             </Grid>
@@ -872,7 +900,9 @@ export default function EditCreateUserProfile(props) {
                           <Grid item align="center" xs={12} sm={12} md={6}>
                             <FormikField
                               name="firstName"
-                              label={i18next.t("first_name", "First name")}
+                              label={
+                                i18next.t("first_name", "First name") as string
+                              }
                               placeholder={i18next.t(
                                 "first_name",
                                 "First name"
@@ -890,8 +920,12 @@ export default function EditCreateUserProfile(props) {
                           <Grid item align="center" xs={12} sm={12} md={6}>
                             <FormikField
                               name="lastName"
-                              label={i18next.t("last_name", "Last name")}
-                              placeholder={i18next.t("last_name", "Last name")}
+                              label={
+                                i18next.t("last_name", "Last name") as string
+                              }
+                              placeholder={
+                                i18next.t("last_name", "Last name") as string
+                              }
                               startAdornment={
                                 <InputAdornment position="start">
                                   <PersonOutlinedIcon />
@@ -905,8 +939,10 @@ export default function EditCreateUserProfile(props) {
                           <Grid item align="center" xs={12} sm={12} md={6}>
                             <FormikField
                               name="email"
-                              label={i18next.t("email", "Email")}
-                              placeholder={i18next.t("email", "Email")}
+                              label={i18next.t("email", "Email") as string}
+                              placeholder={
+                                i18next.t("email", "Email") as string
+                              }
                               startAdornment={
                                 <InputAdornment position="start">
                                   <AlternateEmailOutlinedIcon />
@@ -920,7 +956,12 @@ export default function EditCreateUserProfile(props) {
                           <Grid item align="center" xs={12} sm={12} md={6}>
                             <FormikField
                               name="organization"
-                              label={i18next.t("organization", "Organization")}
+                              label={
+                                i18next.t(
+                                  "organization",
+                                  "Organization"
+                                ) as string
+                              }
                               placeholder={i18next.t(
                                 "organization",
                                 "Organization"
@@ -938,7 +979,9 @@ export default function EditCreateUserProfile(props) {
                           <Grid item align="center" xs={12} sm={12} md={6}>
                             <FormikField
                               name="faxNumber"
-                              label={i18next.t("fax_number", "Fax number")}
+                              label={
+                                i18next.t("fax_number", "Fax number") as string
+                              }
                               placeholder={i18next.t(
                                 "fax_number",
                                 "Fax number"
@@ -956,7 +999,12 @@ export default function EditCreateUserProfile(props) {
                           <Grid item align="center" xs={12} sm={12} md={6}>
                             <FormikField
                               name="phoneNumber"
-                              label={i18next.t("phone_number", "Phone number")}
+                              label={
+                                i18next.t(
+                                  "phone_number",
+                                  "Phone number"
+                                ) as string
+                              }
                               placeholder={i18next.t(
                                 "phone_number",
                                 "Phone number"
@@ -974,8 +1022,12 @@ export default function EditCreateUserProfile(props) {
                           <Grid item align="center" xs={12} sm={12} md={6}>
                             <FormikField
                               name="phoneNumberExtension"
-                              label={i18next.t("extension", "Extension")}
-                              placeholder={i18next.t("extension", "Extension")}
+                              label={
+                                i18next.t("extension", "Extension") as string
+                              }
+                              placeholder={
+                                i18next.t("extension", "Extension") as string
+                              }
                               startAdornment={
                                 <InputAdornment position="start">
                                   <PhoneForwardedOutlinedIcon />
@@ -989,8 +1041,10 @@ export default function EditCreateUserProfile(props) {
                           <Grid item align="center" xs={12} sm={12} md={6}>
                             <FormikField
                               name="mobileNumber"
-                              label={i18next.t("mobile", "Mobile")}
-                              placeholder={i18next.t("mobile", "Mobile")}
+                              label={i18next.t("mobile", "Mobile") as string}
+                              placeholder={
+                                i18next.t("mobile", "Mobile") as string
+                              }
                               startAdornment={
                                 <InputAdornment position="start">
                                   <SmartphoneOutlinedIcon />
@@ -1011,7 +1065,7 @@ export default function EditCreateUserProfile(props) {
                           className={classes.whiteButtonText}
                           onClick={handleCancelUpdate}
                         >
-                          {i18next.t("cancel", "Cancel")}
+                          {i18next.t("cancel", "Cancel") as string}
                         </Button>
                       )}
                       {props.createUser ? (
@@ -1021,7 +1075,12 @@ export default function EditCreateUserProfile(props) {
                           color="info"
                           className={classes.whiteButtonText}
                         >
-                          {i18next.t("create_profile", "Create Profile")}
+                          {
+                            i18next.t(
+                              "create_profile",
+                              "Create Profile"
+                            ) as string
+                          }
                         </Button>
                       ) : (
                         <Button
@@ -1030,7 +1089,7 @@ export default function EditCreateUserProfile(props) {
                           color="info"
                           className={classes.whiteButtonText}
                         >
-                          {i18next.t("save_profile", "Save Profile")}
+                          {i18next.t("save_profile", "Save Profile") as string}
                         </Button>
                       )}
                     </CardFooter>
diff --git a/jams-react-client/src/views/UserProfile/UserProfile.tsx b/jams-react-client/src/views/UserProfile/UserProfile.tsx
index 92e6642be84657a76465fca490b1b7017a149f38..625061699fd48e7b93d9ffaf46fb8ddb874613b8 100755
--- a/jams-react-client/src/views/UserProfile/UserProfile.tsx
+++ b/jams-react-client/src/views/UserProfile/UserProfile.tsx
@@ -79,15 +79,15 @@ export default function UserProfile(props) {
           indicatorColor="secondary"
         >
           <Tab
-            label={i18next.t("profile", "Profile")}
+            label={i18next.t("profile", "Profile") as string}
             {...a11yProps(value, 0)}
           />
           <Tab
-            label={i18next.t("devices", "Devices")}
+            label={i18next.t("devices", "Devices") as string}
             {...a11yProps(value, 1)}
           />
           <Tab
-            label={i18next.t("contacts", "contacts")}
+            label={i18next.t("contacts", "contacts") as string}
             {...a11yProps(value, 2)}
           />
         </Tabs>
diff --git a/jams-react-client/src/views/Users/Users.tsx b/jams-react-client/src/views/Users/Users.tsx
index 700eaf12282fe3a7973245221edcf1ec0374af90..5757f1d0f95ce670d21aadc7e4404673ed35d5c8 100644
--- a/jams-react-client/src/views/Users/Users.tsx
+++ b/jams-react-client/src/views/Users/Users.tsx
@@ -168,7 +168,7 @@ export default function Users() {
             <Link to={"/createuser"}>
               <Button variant="contained" color="primary">
                 <AddCircleOutlineIcon />{" "}
-                {i18next.t("create_user", "Create user")}
+                {i18next.t("create_user", "Create user") as string}
               </Button>
             </Link>
           )}
@@ -198,7 +198,10 @@ export default function Users() {
                       "Search users using (username, first name, last name)"
                     ),
                     inputProps: {
-                      "aria-label": i18next.t("search_users", "Search users"),
+                      "aria-label": i18next.t(
+                        "search_users",
+                        "Search users"
+                      ) as string,
                     },
                     onKeyUp: handleSearchUsers,
                   }}
@@ -228,7 +231,7 @@ export default function Users() {
               <InfoIcon />
 
               <p style={{ marginLeft: "10px" }}>
-                {i18next.t("no_users_found", "No users found")}
+                {i18next.t("no_users_found", "No users found") as string}
               </p>
             </div>
           )}
@@ -307,10 +310,12 @@ export default function Users() {
             <InfoIcon />
 
             <p style={{ marginLeft: "10px" }}>
-              {i18next.t(
-                "no_users_found_matching",
-                "No users found matching search value!"
-              )}
+              {
+                i18next.t(
+                  "no_users_found_matching",
+                  "No users found matching search value!"
+                ) as string
+              }
             </p>
           </div>
         )}