I need to deactivate my draftsight license.

Hi, We have recently purchased a draftsight enterprise license. So we want to move the existing draftsight standard license to another system. We deactivated and uninstalled the standard license available with us and tried to install in another system. But we got the below error. This license is not being currently used in any other systems. So please suggest a way to transfer this license. We purchased the standard license online directly from the draftsight website. So our Solidworks reseller couldn't support us on this issue.