Update app.py

app.py

@@ -120,7 +120,7 @@ with block:
             chatbot = gr.Chatbot()
             message = gr.Textbox(label="User", placeholder=prompt)
             state = gr.State()
-    upload_button.click(message_and_history, inputs=[output_img, message, state, api_input], outputs=[chatbot, state])
+    show_concat.click(message_and_history, inputs=[output_img, message, state, api_input], outputs=[chatbot, state])
     message.submit(message_and_history, inputs=[output_img, message, state, api_input], outputs=[chatbot, state])
     message.submit(lambda: None, None, message, queue=False)