I changed the Administrator password in UTS User Management while I had UTS Server Administration open. I then tried to change a setting in UTS Administration and got an error that states, "extensis.esp.admin.AdminException: Invalid username or password".
This happens when the Universal Type Server Administrator password is changed while UTS Administration is open. It can also happen if you restore a UTS backup that has a different Administrator password than the one that was in use when you logged into UTS Administration.
This is a harmless error message that is simply saying that the Administrator password for the current session is no longer valid.
To resolve the issue, log out of UTS Administration, then log back in with the new Administrator password.