fix

app.py

@@ -344,8 +344,6 @@ def main():
                         vc_search.click(auto_search, [vc_input2], [vc_output1, vc_input3])
                         vc_submit.click(svc_main, [sid, vc_input3], [vc_output1, vc_output2])
 
-            app.set_on_close(on_close)
-
             app.queue(max_size=3, api_open=False).launch()
     except KeyboardInterrupt:
         app.close()