9
That's a tough one.
If all the path's are correct I'm not sure, but I think I read once a while ago, that you shouldn't make your databases names real close to the same and with the same password. Maybe that's why, but not sure.
Maybe tell more so someone else might know.
do you use cpanel?
is it a sub domain?
Server type?
MySql version?
I assume that this is new and you never used it, or did it just happen out of the blue?