Pioneer DVD 109 standalone problem

I just got this Mon, 1 to 1 standalone Pioneer DVD 109 Duped at least 50 DVDs with no problem. Now whenever I try to duplicate, I get “Target Drive Not Ready” I called Pioneer, and they refuse to fix the machine, claiming the duplicator isn’t made by them. I need to get this fixed or replaced immediately.
(It is not hooked up to a computer as I have a MAC)