404. That’s an error.
The requested URL /bookmarks/mark?op=edit&output=popup&bkmk=http://luxlux.net/samyie-pribyilnyie-vidyi-sporta-27643/&title=%D0%A1%D0%B0%D0%BC%D1%8B%D0%B5+%D0%BF%D1%80%D0%B8%D0%B1%D1%8B%D0%BB%D1%8C%D0%BD%D1%8B%D0%B5+%D0%B2%D0%B8%D0%B4%D1%8B+%D1%81%D0%BF%D0%BE%D1%80%D1%82%D0%B0
was not found on this server. That’s all we know.