Page not found (404)

Request Method: GET
Request URL: https://6422570.ru/%25D0%25B2%25D0%25BE%25D0%25B5%25D0%25BD%25D0%25BD%25D0%25B0%25D1%258F-%25D0%25B8%25D0%25BF%25D0%25BE%25D1%2582%25D0%25B5%25D0%25BA%25D0%25B0/
Raised by: catalog.views.get_category

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.