Page not found (404)

Request Method: GET
Request URL: http://openprofession.ru/landing_op_payment?edmodule_id=17&edmodule_enrollment_id=-1
Raised by: opro_payments.views.landing_op_payment_view

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.