Page not found (404)

Request Method: GET
Request URL: http://mera.mn/%D1%82%D0%BE%D0%B3%D1%82%D0%B2%D0%BE%D1%80%D1%82%D0%BE%D0%B9-%D1%85%D3%A9%D0%B3%D0%B6%D0%B8%D0%BB/

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.