update msg

app.py

@@ -146,7 +146,7 @@ with gr.Blocks() as demo:
     load_btn.click(load_documents, inputs=[file_input], outputs=[load_output])
 
     # Event handler for text input (only process text)
-    msg.submit(perform_rag, inputs=[msg, chatbot, None, False], outputs=[chatbot])
+    msg.submit(perform_rag, inputs=[msg, chatbot], outputs=[chatbot])
 
     # Event handler for audio input (only process audio)
     audio_input.change(perform_rag, inputs=[msg, chatbot, audio_input, translate_checkbox], outputs=[chatbot])