Page not found (404)

Request Method: GET
Request URL: https://nisarga.center/event/2014-05-01-07-bez-tsentra-i-granits-v-yaroslavle/
Raised by: django.contrib.flatpages.views.flatpage

No FlatPage matches the given query.

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.