Fatal error: Uncaught Error: Call to undefined function disabled() in /home/malvernj/public_html/wp-content/plugins/event-tickets/src/admin-views/editor/elements/new-ticket.php:5 Stack trace: #0 {main} thrown in /home/malvernj/public_html/wp-content/plugins/event-tickets/src/admin-views/editor/elements/new-ticket.php on line 5