Page not found (404)

Request Method: GET
Request URL: http://diplomaticdictionary.com/dictionary/%D1%82%D1%80%D0%B0%D0%BD%D1%81%D0%BF%D0%BE%D1%80%D1%82%D0%BD%D1%8B%D0%B9-%D0%BA%D0%BE%D1%80%D0%B8%D0%B4%D0%BE%D1%80-%D1%81%D0%B5%D0%B2%D0%B5%D1%80-%D1%8E%D0%B3/
Raised by: wagtail.core.views.serve

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.