Page not found (404)

Request Method: GET
Request URL: http://ulaanbaatarbuyan.mn/%D1%87%D0%B0%D0%BD%D0%B4%D0%B0%D1%80%D1%8B%D0%B3-%D0%BD%D1%8C-%D0%B3%D1%8D%D1%80%D1%82%D1%8D%D1%8D-%D1%85%D0%B0%D0%B4%D0%B3%D0%B0%D0%BB%D0%B6-%D0%B1%D0%BE%D0%BB%D0%BE%D1%85-%D1%83%D1%83/

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.