diff --git a/middleware/app_be/services/dropboxservice.py b/middleware/app_be/services/dropboxservice.py
index 3f61667..24350ed 100644
--- a/middleware/app_be/services/dropboxservice.py
+++ b/middleware/app_be/services/dropboxservice.py
@@ -57,7 +57,7 @@ class DropboxService(StorageServiceInterface):
         :param filename: filename
         :return: bytes representation of the file or None on error
         """
-        file_bytes: bytes
+        file_bytes: bytes = None
         try:
             dbx = dropbox.Dropbox(settings.DROPBOX_OAUTH2_ACCESS_TOKEN)
             f: requests.models.Response
diff --git a/middleware/app_be/views/rest_api.py b/middleware/app_be/views/rest_api.py
index 791e08d..3e26310 100644
--- a/middleware/app_be/views/rest_api.py
+++ b/middleware/app_be/views/rest_api.py
@@ -69,7 +69,7 @@ class ImageEndpoint:
                     return JsonResponse({'valid': False, 'available': True})
 
         if no_image:
-            JsonResponse({'valid': False, 'available': False})
+            return JsonResponse({'valid': False, 'available': False})
 
         return JsonResponse({'valid': True, 'available': True})