Cogent abuse?

Anyone know of a backup way to contact Cogent abuse? Apparently their normal address routes emails directly into a php script, which sounds perfectly safe, but that is now broken: This is the mail system at host abuse01-hhc.sys.cogentco.com. ... <report@abuse01-hhc.sys.cogentco.com<mailto:report@abuse01-hhc.sys.cogentco.com>> (expanded from <report@abuse.sys.cogentco.com<mailto:report@abuse.sys.cogentco.com>>): Command died with status 1: "/usr/bin/php" Thanks