old Mirror Manager record for mirror.datacenter.by

Hello, Can you please hide/disable/remove old Mirror Manager record for mirror.datacenter.by? Recently I created new one (under https://admin.fedoraproject.org/mirrormanager/site/943) since we wanted to specify carried categories and setup report mirror script. However, nobody around the mirror can't remember access credentials for former mirror. Can you please help? Thanks, Mitry