Page not found (404)

Request Method: GET
Request URL: https://www.kontinent.ru/product/udlinitel-universal-20m-1-gnezdo-s-zazemleniem-10a-pvs-3-075-na-ramke-art-ush-10-96320220/
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.