In the Circulation preferences chapter, under finesCalendar (https://koha-community.org/manual/latest/en/html/circulationpreferences.html#finescalendar) there is an internal reference to the calendar section. The formatting needs to be corrected. :ref:calendar<calendar-label>` Correct formatting :ref:`calendar<calendar-label>`
Fixed by merge request 1103, September 2025: https://gitlab.com/koha-community/koha-manual/-/merge_requests/1103