You moved the file to a new computer, but the license is still tied to the old one's MAC address.
In MATLAB, a license.lic file is a license file that contains information about your software license, including the license type, expiration date, and permitted users. This file is used to activate and validate your MATLAB license. license.lic matlab
The structure & location of license.lic depends on your license type: You moved the file to a new computer,