> Never deploy a site into production with DEBUG turned on.

- https://docs.djangoproject.com/en/4.1/ref/settings/#debug

Setting DEBUG = False doesn't cause in Internal Server Issue. The issue is caused by something else, having DEBUG = True just means Django will return a detailed error page, instead of a generic 500 error page.

IIRC, DEBUG = True also used to leak memory, which doesn't matter so much for local development, where it's intended to be used.