Page not found (404)

Request Method: GET
Request URL: /en/about/None/
Raised by: cms.views.details

Using the URLconf defined in src.urls, Django tried these URL patterns, in this order:

  1. ^static/(?P<path>.*)$
  2. ^media/(?P<path>.*)$
  3. ^en/ ^admin/
  4. ^en/ ^ ^cms_wizard/
  5. ^en/ ^ ^(?P<slug>[0-9A-Za-z-_.//]+)/$ [name='pages-details-by-slug']
  6. ^en/ ^ ^$ [name='pages-root']

The current URL, /en/about/None/, didn't match any of these.

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.