Update app.py

app.py

@@ -661,7 +661,7 @@ def generate_story_and_speech(secret_token, input_text, chatbot_role):
         return generate_speech_from_history(history_tuples, chatbot_role, story_text) 
 
     else:
-        return {"text": "Failed to generate story (last_history is empty)", "audio": None}
+        return []
 
 # Create a Gradio Interface using only the `generate_story_and_speech()` function and the 'json' output type
 demo = gr.Interface(