Page not found (404)

Request Method: GET
Request URL: https://palj.net/37845/202001/t20200108_5983475.html/
Raised by: django.contrib.flatpages.views.flatpage

No FlatPage matches the given query.

You're seeing this error because you have DEBUG = True in your Django settings file. Change that to False, and Django will display a standard 404 page.