i got some weird error when tryin to log back onto ao after dinner today, ao wouldnt open so i deleted and reinstalled it

now its installed and im patching through i get to 18.6.2 and when i patch from 6.2 to 6.3 i get Missing dbDebug.dll file
there is a file with the same name but contents are different

ive tried to patch manually but to no avail, anything i can do?