Page not found (404)

Request Method: GET
Request URL: http://djg-halle.de/blog/japanfest-am-pei%25C3%259Fnitzhaus-2018/
Raised by: mezzanine.blog.views.blog_post_detail

No BlogPost 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.