Update app.py

app.py

@@ -79,7 +79,7 @@ with gr.Blocks() as demo:
                 clear_button = gr.ClearButton([input_txt, chatbot])
             # Backend Process:
             file_msg = upload_btn.upload(fn=UploadFile.process_uploaded_files, inputs=[
-                upload_btn, chatbot, rag_with_dropdown, model_choice], outputs=[input_txt, chatbot], queue=False)
+                upload_btn, chatbot, rag_with_dropdown], outputs=[input_txt, chatbot], queue=False)
 
             txt_msg = input_txt.submit(fn=ChatBot.respond,
                                        inputs=[chatbot,