Hi Customers,
Because of Envato’s Rule, you can only activate the theme for a single domain so it makes it difficult to install themes on a Dev / Test site or Localhost to Test The Function at the same time as a Live Site.
You can de-register itself on your old website via WPADmin > Theme Settings > Product Registration
If you lost access to your old website, we have developed a function that allows you to Deactivate Purchase Code to re-use it when you want to transfer them to another domain.
You can do it here(need logged in with ShineHelp account):
https://shinehelp.travelerwp.com/deregistration-purchasecode
Regards