Invalid password error.

[tHE DSS]

I think the problem will most proberbly be with the store hack you've installed.

To start the troubleshooting, it would be best to, like you say you are going to do already, un-install the store hack. Be sure to un-install it correctly, putting exactly the right (original) code back.

Once you've done that, see if you still get the problems.

If it is actually that you've installed the store hack in-correctly, then you'd be better off asking for support in the store hack thread.