diff --git a/covas_mobile/lib/l10n/app_en.arb b/covas_mobile/lib/l10n/app_en.arb
index c70f2e7..87c6c52 100644
--- a/covas_mobile/lib/l10n/app_en.arb
+++ b/covas_mobile/lib/l10n/app_en.arb
@@ -122,5 +122,12 @@
 "walking": "Walking",
 "cycling": "Cycling",
 "driving": "Driving",
-"get_direction": "Get Directions and Markers"
+"get_direction": "Get Directions and Markers",
+"missing_token": "Missing access token",
+"geocoding_error": "Error when geocoding",
+"no_found_place": "No found place",
+"upload_error": "Error when image uploading",
+"event_added": "Event added",
+"unknown_error": "Unknown error",
+"app_error": "Application error"
 }
\ 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 66a789f..b25d67d 100644
--- a/covas_mobile/lib/l10n/app_fr.arb
+++ b/covas_mobile/lib/l10n/app_fr.arb
@@ -122,5 +122,12 @@
 "walking": "Marche",
 "cycling": "Vélo",
 "driving": "Voiture",
-"get_direction": "Get Directions and Markers"
+"get_direction": "Get Directions and Markers",
+"missing_token": "Token d'accès manquant",
+"geocoding_error": "Erreur lors du geocodage",
+"no_found_place": "Lieu introuvable",
+"upload_error": "Erreur lors de l'upload d'image",
+"event_added": "Évènement ajouté",
+"unknown_error": "Erreur inconnue",
+"app_error": "Erreur d'application"
 }
\ No newline at end of file
diff --git a/covas_mobile/lib/pages/UpdateEventImage.dart b/covas_mobile/lib/pages/UpdateEventImage.dart
index 0c70e02..0a08e25 100644
--- a/covas_mobile/lib/pages/UpdateEventImage.dart
+++ b/covas_mobile/lib/pages/UpdateEventImage.dart
@@ -179,8 +179,11 @@ class _UpdateeventImageState extends State<UpdateeventImage>
     var accessToken = prefs.getString("access_token") ?? "";
 
     if (accessToken.isEmpty) {
-      showAlertDialog(context, AppLocalizations.of(context)?.error ?? "Error",
-          "Token d'accès manquant");
+      showAlertDialog(
+          context,
+          AppLocalizations.of(context)?.error ?? "Error",
+          AppLocalizations.of(context)?.missing_token ??
+              "Missing access token");
       return;
     }
 
@@ -195,15 +198,18 @@ class _UpdateeventImageState extends State<UpdateeventImage>
       final searchboxResponse = await http.get(searchboxUrl);
 
       if (searchboxResponse.statusCode != 200) {
-        showAlertDialog(context, AppLocalizations.of(context)?.error ?? "Error",
-            "Erreur lors de la géocodage avec Searchbox");
+        showAlertDialog(
+            context,
+            AppLocalizations.of(context)?.error ?? "Error",
+            AppLocalizations.of(context)?.geocoding_error ??
+                "Error when geocoding");
         return;
       }
 
       final searchboxData = json.decode(searchboxResponse.body);
       if (searchboxData['results'].isEmpty) {
         showAlertDialog(context, AppLocalizations.of(context)?.error ?? "Error",
-            "Lieu introuvable");
+            AppLocalizations.of(context)?.no_found_place ?? "No found place");
         return;
       }
 
@@ -247,8 +253,11 @@ class _UpdateeventImageState extends State<UpdateeventImage>
           await http.Response.fromStream(await imgbbRequest.send());
 
       if (imgbbResponse.statusCode != 200) {
-        showAlertDialog(context, AppLocalizations.of(context)?.error ?? "Error",
-            "Erreur lors de l'upload d'image");
+        showAlertDialog(
+            context,
+            AppLocalizations.of(context)?.error ?? "Error",
+            AppLocalizations.of(context)?.upload_error ??
+                "Error when image uploading");
         return;
       }
 
@@ -279,13 +288,15 @@ class _UpdateeventImageState extends State<UpdateeventImage>
       );
 
       if (eventResponse.statusCode == 200 || eventResponse.statusCode == 201) {
-        showEventDialog(context, "Événement $name ajouté");
+        String event_message =
+            AppLocalizations.of(context)?.event_added ?? "Event added";
+        showEventDialog(context, "$event_message : $name");
       } else {
         handleHttpError(eventResponse.statusCode, context);
       }
     } catch (e) {
       showAlertDialog(context, AppLocalizations.of(context)?.error ?? "Error",
-          "Erreur: ${e.toString()}");
+          AppLocalizations.of(context)?.app_error ?? "Error application");
     }
   }
 
@@ -302,8 +313,12 @@ class _UpdateeventImageState extends State<UpdateeventImage>
       500: AppLocalizations.of(context)?.internal_error_server ??
           "Internal error server"
     };
-    showAlertDialog(context, AppLocalizations.of(context)?.error ?? "Error",
-        messages[statusCode] ?? "Unknown error");
+    showAlertDialog(
+        context,
+        AppLocalizations.of(context)?.error ?? "Error",
+        messages[statusCode] ??
+            AppLocalizations.of(context)?.unknown_error ??
+            "Unknown error");
   }
 
   void start() async {
@@ -342,7 +357,9 @@ class _UpdateeventImageState extends State<UpdateeventImage>
 
   final _formKey = GlobalKey<FormState>();
   String? _validateField(String? value) {
-    return value!.isEmpty ? 'Champ requis' : null;
+    return value!.isEmpty
+        ? AppLocalizations.of(context)?.required_input ?? 'Required input'
+        : null;
   }
 
   Future<void> searchSuggestions(String input) async {
@@ -384,7 +401,7 @@ class _UpdateeventImageState extends State<UpdateeventImage>
           TextField(
             controller: inputGeo,
             decoration: InputDecoration(
-              labelText: 'Lieu',
+              labelText: AppLocalizations.of(context)?.location ?? 'Location',
               border: OutlineInputBorder(),
               suffixIcon: IconButton(
                 icon: const Icon(Icons.clear),