fix

app.py

@@ -21,7 +21,7 @@ def chatbot_interface():
     )
     submit_chat_button = gr.Interface(
         fn=lambda bot, question: bot(question),
-        inputs=[gr.inputs.Hidden(), chatbot],
+        inputs=[gr.inputs.Textbox(), chatbot],
         outputs=gr.outputs.Textbox(label="Bot Response"),
         title="Chat with your Bot",
         description="Type a question and click submit to get a response from your bot."
@@ -33,3 +33,4 @@ submit_init_button, submit_chat_button = chatbot_interface()
 
 submit_init_button.launch()
 submit_chat_button.launch()
+