Settings link gives error when Repository has "Enabled but hidden" selected

Go to Plugins > Repositories
Select Manage Repositories
with Private files set Active to "Enabled but hidden"
Select Settings link
Error page with Section Error and link.
http://docs.moodle.org/26/en/error/admin/sectionerror

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Section error!

More information about this error

Debug info:
Error code: sectionerror
Stack trace:
line 463 of /lib/setuplib.php: moodle_exception thrown
line 6285 of /lib/adminlib.php: call to print_error()
line 51 of /admin/repository.php: call to admin_externalpage_setup()