Update app.py

app.py

@@ -269,6 +269,7 @@ with gr.Blocks(css="""#chatbot { font-size: 14px; min-height: 1200; }""") as dem
             # Chat Interface
             chatbot = gr.Chatbot(label="Chat History", type="messages")
             msg = gr.Textbox(label="Enter your question here", lines=2)
+            submit_btn = gr.Button("Submit")
             clear = gr.ClearButton([msg, chatbot])
 
             # Example Questions
@@ -315,10 +316,16 @@ with gr.Blocks(css="""#chatbot { font-size: 14px; min-height: 1200; }""") as dem
                 {"role": "assistant", "content": f'[ERROR]: {str(e)}'}
             ]
 
+    submit_btn.click(
+        respond, 
+        [msg, chatbot, url, file, openAI_key, model], 
+        [msg, chatbot]
+    )
+
     msg.submit(
         respond, 
         [msg, chatbot, url, file, openAI_key, model], 
-        [chatbot]
+        [msg, chatbot]
     )
 
 demo.launch()