Page not found (404)

Request Method: GET
Request URL: https://register.maxiracemadeira.com/en/race/maxiracemadeira2020/enroll/long2020/
Raised by: event.views.registration_form

No Event matches the given query.

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.