Page not found (404)

Request Method: GET
Request URL: https://www.kontinent.ru/product/plitka-intercerama-portland-stena-svetlo-seraia-15-40-art-1540180071-20sht-120m2/
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.