Page not found (404)

Request Method: GET
Request URL: http://www.kurkuma.pl/img/50d415e2b0109be0a3565abe981117bb/4/
Raised by: wagtail.wagtailcore.views.serve

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.