If anyone else is facing this issue, please do this your issue will be solved quickly. To reactivate Parallels Desktop on computers where the license has been deactivated, open Dashboard > click Deactivated computers under the subscription name. Tick the checkbox next to the computer name you want to reactivate > click Actions > Reactivate. If you wanna buy it at discounted rates, visit Wym site for best deals like you can get 239Mb software in just $4 instead of $60. 

Thanks,