Page not found (404)

Request Method: GET
Request URL: https://www.avistern.co.il/course/%D7%A2%D7%96%D7%A8%D7%94/%D7%A2%D7%96%D7%A8%D7%94/%D7%A1%D7%A8%D7%98%D7%95%D7%A0%D7%99%D7%9D-%D7%9C%D7%93%D7%95%D7%92%D7%9E%D7%90

No Course 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.