Most keys are tied to the computer's MAC address. If you change your server hardware, you will likely need to contact support to reset the license ZKTeco Technology Are you setting up a new installation , or are you trying to transfer a license to a different computer? User Manual - Hotel Lock System - ZKTeco
If you are looking to (program a card) or a product license, How to Register a Key (Mifare Cards) zkbiolock register key
Open the software and select "License Registration" to generate a unique UPK (User Public Key). Most keys are tied to the computer's MAC address