diff --git a/covas_mobile/lib/l10n/app_en.arb b/covas_mobile/lib/l10n/app_en.arb
index 2f26705..813be8c 100644
--- a/covas_mobile/lib/l10n/app_en.arb
+++ b/covas_mobile/lib/l10n/app_en.arb
@@ -27,5 +27,10 @@
 "user_create": "Your user created",
 "request_error": "Poorly constructed query",
 "incorrect_password": "Incorrect password",
-"unknown_user": "Utilisateur inconnu"
+"unknown_user": "Unknown user",
+"disabled_user": "User disabled",
+"invalid_token": "Invalid token",
+"internal_error_server": "Internal error server",
+"unknown_error_auth": "Unknown error authentification"
+
 }
\ No newline at end of file
diff --git a/covas_mobile/lib/l10n/app_fr.arb b/covas_mobile/lib/l10n/app_fr.arb
index 8926cd5..19e1445 100644
--- a/covas_mobile/lib/l10n/app_fr.arb
+++ b/covas_mobile/lib/l10n/app_fr.arb
@@ -27,5 +27,10 @@
 "user_create": "Votre utilisateur a été créé",
 "request_error": "Requête mal construite",
 "incorrect_password": "Mot de passe incorrect",
-"unknown_user": "Utilisateur inconnu"
+"unknown_user": "Utilisateur inconnu",
+"disabled_user": "Utilisateur désactivé",
+"invalid_token": "Token invalide",
+"internal_error_server": "Erreur interne de serveur",
+"unknown_error_auth": "Problème d'authentification inconnu"
+
 }
\ No newline at end of file
diff --git a/covas_mobile/lib/pages/AddProfile.dart b/covas_mobile/lib/pages/AddProfile.dart
index ce0fc25..11de4ea 100644
--- a/covas_mobile/lib/pages/AddProfile.dart
+++ b/covas_mobile/lib/pages/AddProfile.dart
@@ -139,15 +139,18 @@ class _AddProfileState extends State<AddProfile> with ShowAlertDialog {
           "Poorly constructed query",
       406: AppLocalizations.of(context)?.incorrect_password ??
           "Incorrect password",
-      404: AppLocalizations.of(context)?.unknown_user ?? "Utilisateur inconnu",
-      403: "Utilisateur désactivé",
-      410: "Token invalide",
-      500: "Problème interne du serveur",
+      404: AppLocalizations.of(context)?.unknown_user ?? "Unknown user",
+      403: AppLocalizations.of(context)?.disabled_user ?? "Disabled user",
+      410: AppLocalizations.of(context)?.invalid_token ?? "Invalid token",
+      500: AppLocalizations.of(context)?.internal_error_server ??
+          "Internal error server"
     };
 
     final text = errorMessages[responsePost.statusCode] ??
-        "Problème d'authentification inconnu";
-    showAlertDialog(context, "Erreur serveur", text);
+        AppLocalizations.of(context)?.unknown_error_auth ??
+        "Unknown error auth";
+    showAlertDialog(
+        context, AppLocalizations.of(context)?.error ?? "Error", text);
   }
 
   @override