Lost PAB

I tried PAB in the past and didn't like it but I want to give it another shot, however I can't find it.

I can pull up the config menu with /PAB but it doesn't actually appear anywhere on my UI. I've tried uninstalling/reinstalling it and it's just not there.

I think I dragged it off my screen originally. Is there a way to reset PAB so it appears again?

Whatever this PAB is I think you try these commands:
/reset PAB
/PAB reset
/PAB center, and so on.

When you delete the addon you still have the settings left, you have to get inside your WTF/account/Account name/Savedvariables and remove those files.