Your license could not be activated, because you've exceeded the number of seats for your license. You can try to deactivate your license in the Licensing tab of the General Settings window on your other machine.

Please note: Should you experience issues with Enscape or your subscription, and in case of any urgent inquiries/questions (e.g. regarding our upcoming licensing changes) please reach out to our dedicated support team via the Help Center or Support button as detailed here.