You can't proceed to the K2 App activation on the App Catalog as an AAD Authorization error occurs.
The error reads:
AAD Authorization: Error issuing app only token.
The certificate used to sign a token was not exportable.
- Ensure you have K2 Five RTM installed.
- Get the K2 Five RTM FP11 from Regional Support.
- Install the K2 Five RTM FP11 to apply the fix.