Cant activate product

I have migrated to a new mac, and unistalled the old version prior to erasing the drive.

Now I can't activate on my new mac with the following error:
You have reached the maximum number of activations available for your activation key (http://www.parallels.com/eula). Please purchase a new product license.

How do I deactivate a computer that has been reset to factory condition?

 

Hi @BrittonW , We have made the changes.
1. Quit Parallels Desktop
2. Open Finder > Application > Utility > Terminal and execute the command "prlsrvctl activate-license-online". and check it helps.