I just bought a used Yamaha Yamaha THR 10 and the Steinberg CUBASE AI6 software was in the box. When I installed it onto my laptop everything seemed to go ok, but when I tried to open it was asking for a license activation code. There wasn’t one in the box, neither was there a user guide. I was able to get access to one on the web however. Is it possible to buy an activation code? The website doesn’t seem to help.