Page not found (404)

Request Method: GET
Request URL: http://zab-cultura.ru/events/proekt-odin-na-odin-boi-po-smeshannym-edinoborstvam/
Raised by: apps.events.views.EventDetailView

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.