it can be dotnetfix that is missing
in most cases is that what is missing , as the account server try to open netframework but can not find it so it crash (in some cases it gives a visualbasic error .. is the same but then you got visual basic error reporting installed :P )
if that is not the error then it can be your database ... it can be so many things
a screenshot of the error would be nice to so we know how it looks like and what the error could be
Greets From PowerChaos