You must have activated the your license key on more sites than your license allows. I need to remove one of those activations from the system to stop the error. What is the email address you used for your order, or the Order number?

And are you trying to use the plugin on multiple websites, or do you just want to transfer your license to another site?

Alright Chris,

I’ve cleared those license key activations from the old site, so it should be fine now.

For future reference, you can also manage your license key activations from the Licenses tab of your account area:

propluginmarketplace.com/my-account