I'm getting error 500 on every endpoint on questions method (with key):

http://api.superuser.com/1.0/questions?sort=votes&pagesize=30&page=1&key=stackprinterkey

the only endpoint not affected is stackoverflow:


http://api.stackoverflow.com/1.0/questions?sort=votes&pagesize=30&page=1&key=stackprinterkey

Any hints?