Page not found (404)

Request Method: GET
Request URL: http://www.industriepark-herrenwiese.de/photovoltaik.html
Raised by: django.views.static.serve

„/var/www/industriepark-herrenwiese.de/django/photovoltaik.html“ ist nicht vorhanden

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.