Page not found (404)

Request Method: GET
Request URL: http://mgl.org.il/en/lesson/%D7%90%D7%AA%D7%92%D7%A8%D7%99-%D7%94%D7%A1%D7%9C%D7%99%D7%97%D7%94/
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.