Fix return values in respond function

app.py

@@ -151,11 +151,11 @@ with gr.Blocks(css='''
         print(f"Query: {query}")  # Debug print statement
         response, history = model_chat(query, history)
         print(f"Response: {response}")  # Debug print statement
-        return history, gr.update(value="", interactive=True)
+        return history, gr.update(value="", interactive=True), history  # Ensure correct return format
 
     demo_state = gr.State([])
 
     query.submit(respond, [query, demo_state], [chatbot, query, demo_state])
-    clear_btn.click(clear_session, [], demo_state, chatbot)
+    clear_btn.click(clear_session, [], [chatbot, demo_state])
 
-demo.launch()
+demo.launch(share=True)