Fatal error: Uncaught Error: Call to undefined function add_action() in /home/pac84520/public_html/wp-content/plugins/wp-lister-ebay/classes/integration/WooProductMetaBox.php:12 Stack trace: #0 /home/pac84520/public_html/wp-content/plugins/wp-lister-ebay/classes/integration/WooProductMetaBox.php(2980): WpLister_Product_MetaBox->__construct() #1 {main} thrown in /home/pac84520/public_html/wp-content/plugins/wp-lister-ebay/classes/integration/WooProductMetaBox.php on line 12