Fatal error: Uncaught Error: Call to undefined function do_action() in /home/malvernj/public_html/wp-content/plugins/event-tickets/src/admin-views/order_modifiers/modifier-table.php:24 Stack trace: #0 {main} thrown in /home/malvernj/public_html/wp-content/plugins/event-tickets/src/admin-views/order_modifiers/modifier-table.php on line 24