After loading Mac OS updates cloundmounter is not recognizing the registration key that was valid and in use when the OS update was applied. It asks for a new cloudmounter registration key, and says the old key is in use if it is reentered.  This needs to be fixed, it looks like your software is thinking it is a new computer, instead of just an OS update.

Thank you for reaching us.

Let me please remind you that if  you have switched your machine or changed some hardware in the existing one, or even re-installed (updated) the OS, activation will fail. In such situations all you need is to reset the previous activation following the link here:

https://activate.eltima.com/changehid   

After that, you will be able to reactivate the software using the same code that you have.

If you need our assistance, please contact our Support Team directly via email support@eltima.com