Too many installs on a new Mac

I have used Audirvana on Macs in the past and am trying to install 3.5.5 on a new Mac. However, I am getting the ‘Too many installs’ error when when I try to register it. It is currently only installed on a MacBook, which I want to continue to use, but I may not have revoked the license on an older Mac that I sold a few weeks ago. Can you possibly reset the licences?
I have downloaded Origin on the trial, but prefer the way the older version handles metadata and allows me to list all the genre with the albums.