Can't install Parallels 10 with legacy license

I have an old Parallels 10 desktop for Mac that I would like to install on a OSX 10.7.5 Mac that I have. I have changed the PC with the same HD and now the Parallels need to be reinstalled. When I attempt to install it and enter my license number I get a popup window saying "Unable to confirm the product license. You have reached the maximum number of activations available for your activation key."
I have seen a similar post and I have executed the command <><> prlsrvctl activate-license-online <><> inside the Terminal window, but I have ahain the message.
I ask you to reset my Parallels Desktop key for me if is possible!
Thank you.

 

Hi, your key has been reset, please try to activate it again and check the issue.

 

Now it's all OK!!! Thank you!!!

 

Hello, I am having the same issue, could you please reset mine as well?

 

Done, please check and provide us with any results.

 

Great, I was able to activate it now, many thanks!!

 

Hello, Could you reset mine as well?

 

Done, please check

 

Hello! I just recently started using Apple products. Tell me which version will be more convenient for novice users. Thank you in advance.

 

Hi, if you mean Parallels Desktop for Mac version, the latest one will be more useful.
For more info and features you can see https://www.parallels.com/parallels-desktop-14-launches/
Please let know if you have any additional question.