Fatal error: Uncaught Error: Call to undefined function add_action() in D:\XAMPP\htdocs\UTeM\penerbit\wp-includes\block-bindings\post-meta.php:70 Stack trace: #0 {main} thrown in D:\XAMPP\htdocs\UTeM\penerbit\wp-includes\block-bindings\post-meta.php on line 70