Installation and data-connection related issues

"Your FireBird login and password is not set up". Also "ZError 6624."

What FireBird actually means is that you username/password does not have
enough "permissions".

You are probably still connecting to a database under "C:\Program Files(x86)".
For precisely this reason, the datbase was moved to "C:\Users\UserName\Versus\Data\".
Move the database there, and try again.
( DO NOT "Run as Administrator". One shlould always try to avoid that. )