Page not found (404)

Request Method: GET
Request URL: https://www.cae-eco.fr/staticfiles/pdf/cae-focus046.pdf%2520
Raised by: django.views.static.serve

“C:\home\site\wwwroot\staticfiles\pdf\cae-focus046.pdf%20” does not exist

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.