Fatal error: Uncaught Error: Call to undefined function trailingslashit() in /home/marshalltowncsd/sites/marshalltown.k12.ia.us/releases/20230829083101/web/app/plugins/members/addons/members-role-hierarchy/addon.php:80 Stack trace: #0 /home/marshalltowncsd/sites/marshalltown.k12.ia.us/releases/20230829083101/web/app/plugins/members/addons/members-role-hierarchy/addon.php(42): Members_Role_Hierarchy_Plugin->setup() #1 /home/marshalltowncsd/sites/marshalltown.k12.ia.us/releases/20230829083101/web/app/plugins/members/addons/members-role-hierarchy/addon.php(117): Members_Role_Hierarchy_Plugin::get_instance() #2 {main} thrown in /home/marshalltowncsd/sites/marshalltown.k12.ia.us/releases/20230829083101/web/app/plugins/members/addons/members-role-hierarchy/addon.php on line 80