Pro Licence key worked only twice

[carlkagge]

I have used my pro licence key only twice. Now when I wanted to use it third time, it says: "Reached maximum allowable domains." Is it possible to reset it? Thank you in advance.

[arminunruh]

These are the domains your key was activated on. I removed one so you can activate it a third time.

[carlkagge]

Thanks a lot!! All the best!