AAF device registering


Hello Community

I have the following challenge.

I have an Access Manager and AAF which are connected together via OAuth.

Now I have a user who has the group membership on the AAF in a chain, but he has not registered his device yet.

The user logs on to the Access Manager and gets a white page because no device has been registered.

How and where do I have to define that the /register card of the AAF should appear if no device has been registered in the AAF yet?

Many thanks in advance for your help.