Unable to transfer license

I migrated ipmonitor 10.8.2 to a new server following these directions: Move a licensed installation of ipMonitor 10 to another system - SolarWinds Worldwide, LLC. Help and Support . When I try to re-activate the new server I receive this error: "You cannot install this software version because it was released after your maintenance agreement expired". If I removed ipmonitor and all the contents of the folder, reinstall and try to activate, it works fine. I would not mind start fresh; but, I have a lot of monitor and alerts set up. Is there a way to fix this? and yes, the license I got was for 10.8.2