Hello robert406,
both, license for Grimefighter and Cleanup, are compatible. I recommend updating Avast to the latest version, if you haven't done it already, you can find it via Settings -> Update -> Program.
After updating to latest program version, visit menu Settings -> Subscription, where you can enter your Activation code, or login through My avast. Cleanup could be run through the menu Scan -> Scan for performance issues.
Cheers,
B.