Page not found (404)

Request Method: GET
Request URL: https://standart-znak.ru/product/knopka-vkliucheniia-ustanovok-sistem-pozharnoi-avtomatiki174534/?selected=on
Raised by: apps.catalog.views.ProductDatail

Не найден ни один товар, соответствующий запросу

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.