Quoted from Rushster:
"This afternoon the db server blew a fuse which has corrupted data on the the server disks. We are now trying to restore it from a backup but there is no guarantee it will be a full backup of the site. If you are a mod author then please be primed to re-upload your mods just in case. Apologies for the inconvenience this has caused but such is the way of technology
We'll keep everyone posted on progress."