Page not found (404)

Request Method: GET
Request URL: https://ummash.ru/article/%D0%9F%D0%BE%D0%B4%D1%80%D1%83%D0%B6%D0%BA%D0%B8+%D0%BD%D0%B5%D0%B2%D0%B5%D1%81%D1%82%D1%8B+%D1%80%D1%84
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.