Update app.py

app.py

@@ -19,7 +19,7 @@ def restart_script_periodically():
         os.execl(sys.executable, sys.executable, *sys.argv)
 
 restart_thread = Thread(target=restart_script_periodically, daemon=True)
-restart_thread.start(detach=True)
+restart_thread.start()
 
 queue = Queue()
 queue_threshold = 100