If your serial key is invalid or expired, you may need to purchase a new one or contact Adobe support for assistance.
Always use a valid license. Adobe may not support CS6 anymore, but piracy introduces more problems than it solves — including the very error you’re trying to fix. If your serial key is invalid or expired,
Select or "License this software" when prompted. Enter your valid license key. Frequently Asked Questions Does Encore CS6 Work on macOS Catalina/Big Sur/Monterey? Select or "License this software" when prompted
Go to > Sign Out to log out of your Adobe account globally. Close all Adobe programs. Launch Premiere Pro CS6 . Go to > Sign Out to log out of your Adobe account globally
Launch Premiere Pro CS6 and sign in with your Creative Cloud credentials when prompted.
Local user permission restrictions sometimes block Encore from reading the system registry files where the royalty validation token is cached. Encore CS6 Cannot Run in Non-Royalty Serialized Mode
If prompted, sign in with your Adobe ID or enter your serial number. and simply let the workspace load.