Please make sure that Groove Agent SE 5 is updated to 5.1.11, and the Steinberg Activation Manager is updated to 1.4.0.
Groove Agent SE needs to be updated to use the Steinberg Licensing system used by Cubase 12. This error is likely being caused because you’re using an old version that’s looking for a Cubase 11 license in an USB-eLicenser dongle. If GA SE is outdated and you unplug your dongle, it will stop working.