Query re how to activate Groove Agent Activation After eLicenser Shutdown

Hi
I have just purchased Cubase Pro 14 and activated it, but cannot activate Groove Agent.

I have an unused activation code for Groove Agent.
Since the eLicenser system is now closed, how can I use this code to activate my product?

Can anyone help advise on how to activate Groove Agent with my unused code ?

Thanks,
Mike

Try to enter it it in Download Assistant.