Moving Parallels Desktop 10 to new mac

I am moving Parallels Desktop 10 to a new mac and I get the error that I have reached the max activations.
How can I de-activate the one on the old mac and move to the new mac or can my max activations be reset?

thank you

 

Hello @FrancescoS2 We have sent you a private message, please check and respond. Thanks, Shathish

 

Hello @FrancescoS2 The key which you have provided in the Private message is Parallels Desktop 4 key.