Unable to add new licence in LAN Zoo Administrator

I am trying to add a licence in out new LAN Zoo but the notification says the licence is in use on a computer named “DESKTOP-NKIQV61”. Remove the license from “DESKTOP-NKIQV61” before using it here. I have removed the licence from our old computer but it’s still not working.

Hi - for licensing issues, please contact sales@mcneel.com directly.
-wim