Fatal error: Uncaught Error: Call to undefined function add_action() in /home/infopask/public_html/chocodou/goblok-lu-wan/plugins/woocommerce-checkout-manager/includes/class-wooccm-backend.php:11 Stack trace: #0 /home/infopask/public_html/chocodou/goblok-lu-wan/plugins/woocommerce-checkout-manager/includes/class-wooccm-backend.php(20): WOOCCM_Field_Admin->__construct() #1 /home/infopask/public_html/chocodou/goblok-lu-wan/plugins/woocommerce-checkout-manager/includes/class-wooccm-backend.php(108): WOOCCM_Field_Admin::instance() #2 {main} thrown in /home/infopask/public_html/chocodou/goblok-lu-wan/plugins/woocommerce-checkout-manager/includes/class-wooccm-backend.php on line 11