Page not found (404)

Request Method: GET
Request URL: http://polmaratonsolidarnosci.pl/aktualnosci/biegniemy-razem-dla-stasia/biegniemy-razem-dla-stasia/0,-4z,1,83

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.