https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=11999 --- Comment #59 from Fridolin SOMERS <fridolin.somers@biblibre.com> --- Looks like CanBookBeReserved may be called with undef biblionumber : when at intranet clicking on holds tab of a record. This generates error : Can't call method "holds" on an undefined value -- You are receiving this mail because: You are watching all bug changes.