Page not found (404)

Request Method:	GET
Request URL:	http://xn----ctbjmjcrfri8d8c.xn--p1ai//wp-content/uploads/2017/09.05.2017-%D0%BC%D0%B8%D1%82%D0%B8%D0%BD%D0%B3/%D0%BC%D0%B8%D1%82%D0%B8%D0%BD%D0%B3(13).jpg
Raised by:	fluent_pages.views.dispatcher.CmsPageDispatcher

No published 'UrlNode' found for the path '//wp-content/uploads/2017/09.05.2017-митинг/митинг(13).jpg', language 'ru'.

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.