fix str in file uid

app/api/services/file_upload.py

@@ -134,7 +134,7 @@ class FileUploadService(BaseService):
             return response_data
 
         except Exception as e:
-            logger.error(f"An error occurred while uploading file: {str(e)}", exc_info=True)
+            logger.error(f"An error occurred while uploading profile file: {str(e)}", exc_info=True)
             return jsonify({"message": "Internal Server Error"}), 500
 
     @staticmethod

app/models/members.py

@@ -103,7 +103,7 @@ class Members(db.Model):
             logger.info(f"User UID =  {uid} found")
             raise ValueError(f"Member with UID {uid} does not exist.")
 
-        member.profile_picture = picture_uid.str()
+        member.profile_picture = picture_uid
         return member.profile_picture
 
     @classmethod