Page not found (404)

Request Method: GET
Request URL: http://praktika-rus.ru/product/dalnomer-lazernyij-praktika-dl-20-dalnost-015-20-m-tochnost-10-mm-novinka/
Raised by: apps.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.