Update app.py

app.py

@@ -91,6 +91,6 @@ with gr.Blocks() as demo:
         
     # Input textbox event handlers
     textbox1.submit(echo, [textbox1, chatbot1, system_prompt_textbox1], [textbox1, chatbot1])
-    textbox2.submit(echo, [textbox2, chatbot2, system_prompt_textbox2'], [textbox2, chatbot2])
+    textbox2.submit(echo, [textbox2, chatbot2, system_prompt_textbox2], [textbox2, chatbot2])
 
 demo.launch()