The old activation key perpetual license has not been accepted by the license server

hi，When activating the key for Parallels Desktop 17 for Mac Standard Edition, you need to enter the key from the previous version for confirmation. When entering the Parallels Desktop 16 key for confirmation, the old activation key has not been accepted by the license server. Please help resolve this issue. Thank you.

 

Hello, I bought your Parallels Desktop 13 for Mac product from you a while ago. Currently, the product has been inactive for years, in uninstall mode. I would like to reinstall it, but your system sees that the product is active. This does not correspond to reality. Please inform me how I can use your Parallels Desktop 13 for Mac product again on my computer. The current system on which I would like to install it is: macOS Monterey 12.7.6, what other options do I have.