C:\Users\LG\Desktop\sparta\projects\prac\venv\Scripts\python.exe C:/Users/LG/Desktop/sparta/projects/prac/app.py 

 * Serving Flask app 'app'

 * Debug mode: on

WARNING: This is a development server. Do not use it in a production deployment. Use a production WSGI server instead.

 * Running on all addresses (0.0.0.0)

 * Running on http://127.0.0.1:5000

 * Running on http://192.168.0.16:5000

Press CTRL+C to quit

 * Restarting with stat

 * Debugger is active!

 * Debugger PIN: 537-863-942

이런 에러가 뜹니다

어떻게 하면 될까요?ㅜ