Page not found (404)

Request Method: GET
Request URL: http://tumenshuvuut.mn/%D0%BA%D0%BE%D0%BC%D0%BF%D0%BE%D1%81%D1%82-%D0%B1%D0%BE%D1%80%D0%B4%D0%BE%D0%BE/

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.