Page not found (404)

Request Method: GET
Request URL: https://ummash.ru/article/%D0%A1%D0%B5%D1%80%D1%8B%D0%B9+%D0%BB%D0%B5%D1%82%D0%BD%D0%B8%D0%B9+%D1%81%D0%B0%D1%80%D0%B0%D1%84%D0%B0%D0%BD
Raised by: apps.domains.views.RouterView

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.