How can I do when MMU window can not display in ARM development studio?

Hi experts,

I try to use ARM development studio to debug bootloader and view MMU table contents.

But MMU window can not display the MMU table and shows that "Unable to read from register SCR-EL3".

How can I do to check MMU table?

Current board is running on EL2 with 64bit, CPU is cortext-A73.

ARM development studio version: 2023.1

Thanks for your attention!

Best Regards,