Hi Emmanuel,
It looks like that purchase key is not valid, or it belongs to a different codecanyon product. There is no previous activation found for it either in our database. That must be the issue. I also tried veryfiing it via the Envato API manually, but it says that this purchase key does not belong to our product.
Make sure to get the correct purchase key, and it should resolve the issue, with the remote deactivation as well 🙂