Licence key cannot be used to activate Parallels Desktop

Hello,

I have purchase a licence of parallels desktop several years ago but I have never used it. I need to install it today but when I try to activate the licence I have the following error: Licence key cannot be used to activate Parallels Desktop

If somebody could help me solve this issue, it would be great.

Thanks in advance

 

Hello,
could you provide us with the screenshot of the error message please?

 

Hello,
Here is the screenshot.
Thank you for your help!

 

Could you share with us your license key via the private message please?