Page not found (404)

Request Method: GET
Request URL: http://tumenshuvuut.mn/%D1%88%D1%83%D0%B2%D1%83%D1%83%D0%BD%D1%8B-%D0%B0%D0%B6-%D0%B0%D1%85%D1%83%D0%B9/

Шүүлтүүрт таарах slug олдсонгүй

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.