I tried to activate your recent GPPremium update the other day and was told I needed a license key. My computer guy said it was Flywheel hosting’s issue. The Flywheel people said… “So after the migration, the GP Premium plugin may have detected the in-use license key on your old Bluehost instance and deactivated on Flywheel’s counterpart… look for the license key from your original source of purchase and re-enter it into the plugin on the new site on Flywheel host and should be good to go.
I hope I’ve given you what you need.
Thanks,