Apache2.x, then OpenFire, then MySql were installed.
The MySql Administrator, a stand-alone, separate program which 'talks' with MySql through the address:port, was installed.
Then Apache2.x and OpenFire and MySql were uninstalled.
Then XAMPP was installed, and along with that was the included MySql.
Now XAMPP knows *nothing* about MySql Administrator, a stand-alone app that interfaces with the MySql database when you run it. MySql Administrator has no file-system interaction with XAMPP. It could be as well installed on your local computer, and I could grant access from the computer here, and thereby you could interface with your MySql Administrator to the XAMPP MySql installation.
So now we have established the facts, what does the error mean in plain english so I can go fix it?