Page not found (404)

Request Method: GET
Request URL: http://xn----ctbjmjcrfri8d8c.xn--p1ai//wp-content/uploads/2018/24.03.2018-%D0%B2%D0%B0%D0%BB%D1%83%D0%B9%D0%BA%D0%B8/%D0%B2%D0%B0%D0%BB%D1%83%D0%B9%D0%BA%D0%B8(40).jpg
Raised by: fluent_pages.views.dispatcher.CmsPageDispatcher

No published 'UrlNode' found for the path '//wp-content/uploads/2018/24.03.2018-валуйки/валуйки(40).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.