Page not found (404)

Request Method: GET
Request URL: https://park11.ru/promo/kuhnya-demi-56_75/
Raised by: www.views.promo.PromoDetailView

Не найден ни один Акция, 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.