I've a Studio 2019 Freelance Plus licence, I wanted to activate the second licence on a second PC, but I realized that still a older version is activated, I've still Studio 2015 installed, but I can't deactivate it (Error code: "Deactivation failed. Could not revoke this licence - Login for the product key has been restricted. Contact the system administrator for assistance") In my licences this Studio 2015 licence doesn't appear anymore, only a Studio 2014 licence, but I don't have this installed anymore and can't deactivate this licence offline.