Fatal error: Uncaught Error: Call to undefined function add_action() in /home/ykraanet/public_html/wp-content/plugins/woocommerce-abandoned-cart/includes/background-processes/wcal_process_base.php:17 Stack trace: #0 /home/ykraanet/public_html/wp-content/plugins/woocommerce-abandoned-cart/includes/background-processes/wcal_process_base.php(62): Wcal_Process_Base->__construct() #1 {main} thrown in /home/ykraanet/public_html/wp-content/plugins/woocommerce-abandoned-cart/includes/background-processes/wcal_process_base.php on line 17