Fatal error: Uncaught Error: Call to undefined function add_action() in /srv/disk5/4028052/www/justthetick.et/events/wp-content/plugins/members/addons/members-role-hierarchy/admin/class-manage-roles.php:57 Stack trace: #0 /srv/disk5/4028052/www/justthetick.et/events/wp-content/plugins/members/addons/members-role-hierarchy/admin/class-manage-roles.php(33): MRH_Manage_Roles->setup_actions() #1 /srv/disk5/4028052/www/justthetick.et/events/wp-content/plugins/members/addons/members-role-hierarchy/admin/class-manage-roles.php(125): MRH_Manage_Roles::get_instance() #2 {main} thrown in /srv/disk5/4028052/www/justthetick.et/events/wp-content/plugins/members/addons/members-role-hierarchy/admin/class-manage-roles.php on line 57