Where is 'The level associated with MMU faults' referenced multiple times in Exception Register documentation


I am dealing with a "Permission fault, level 3" in my program and wanted to read the documentation to get to the root of the exception. In the Aarch64 Registers for Armv8-A the following ist mentioned:

For more information about the lookup level associated with a fault, see 'The level associated with MMU faults'.

This sentence can be found multiple times in the documentation. However, I could nowhere find the mentioned section / document for more information. Why isn't this referenced with a link?

Does the mentioned section / document even exist?

Thankful for any help

Martin Schönstedt