Page not found (404)

Request Method: GET
Request URL: https://www.kontinent.ru/product/uteplitel-tekhno-blok-standart-50-600-1200mm-12sht-0432-kub-m-864-kv-m-plotnost-45kg-kub-m/
Raised by: catalog.views.product

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.