Update app.py

app.py

@@ -1315,7 +1315,7 @@ def upload_and_manage(file, target_language, process_mode):
 
     except Exception as e:
         logger.error(f"An error occurred: {str(e)}")
-        return [], None, f"An error occurred: {str(e)}"
+        return None, [], None, f"An error occurred: {str(e)}"
 
 # Gradio Interface with Tabs
 def build_interface():