On "About Koha > System information" there can be warnings like this: Warnings regarding the system configuration Preferences and parameters Warning System preference 'RequireChoosingExistingAuthority' is disabled, but needs 'AutoCreateAuthorities' enabled. Otherwise catalogers can add headings that will not be linked to authorities. Warning System preference 'ILLOpacUnauthenticatedRequest' must be '0' or '1', but is ''. It would be helpful to turn the sysprefs into links that point to the actual syspref, instead of having just the name.