Use of uninitialized value in subtraction (-) at /home/admin/canadafoodcritic.com/cgi-bin/cfc/rev/do/admin/Foundry/Format/ThingMenu.pm line 185.
Foundry::Format::ThingMenu /home/admin/canadafoodcritic.com/cgi-bin/cfc/rev/do/admin/Foundry/Format/ThingMenu.pm 98 Foundry::Format::ThingMenu::_get_thing_id_window