Page not found (404)

Request Method: GET
Request URL: http://diplomaticdictionary.com/dictionary/%D0%BE%D0%B1%D1%81%D0%B5-%D1%81%D1%82%D0%B0%D0%BC%D0%B1%D1%83%D0%BB%D1%8C%D1%81%D0%BA%D0%B8%D0%B9-%D0%B4%D0%BE%D0%BA%D1%83%D0%BC%D0%B5%D0%BD%D1%82-%D1%81%D0%B0%D0%BC%D0%BC%D0%B8%D1%82%D0%B0-%D0%BE%D0%B1%D1%81%D0%B5-1999-%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.