Page not found (404)

Request Method: GET
Request URL: https://sportfanat.com/Suveniry/mini-svitera/
Raised by: feincms.views.cbv.views.Handler

Not found (extra_path u'/mini-svitera/' on <Page: Сувениры>)

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.