Fatal error: Uncaught Error: Call to undefined function add_action() in /nfs/aesop1/dw00/d57/darfur/wp-content/plugins/event-calendar/admin.php:678 Stack trace: #0 {main} thrown in /nfs/aesop1/dw00/d57/darfur/wp-content/plugins/event-calendar/admin.php on line 678