Page not found (404)

Request Method: GET
Request URL: https://pkdkb1.ru/about/polozhenie-o-zakupkah/?theme=default

CMS: Page not found for "about/polozhenie-o-zakupkah"

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.