Page not found (404)

Request Method: GET
Request URL: http://mgl.org.il/en/lesson/category/%D7%93%D7%99%D7%A0%D7%99-%D7%A9%D7%95%D7%9E%D7%A8%D7%99%D7%9D-1/%D7%AA%D7%A0%D7%90%D7%99%D7%9D/
Raised by: mezzanine.pages.views.page

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.