Fatal error: Uncaught Error: Class 'WPL_Model' not found in /home/pac84520/public_html/wp-content/plugins/wp-lister-ebay/classes/model/EbayShippingModel.php:19 Stack trace: #0 {main} thrown in /home/pac84520/public_html/wp-content/plugins/wp-lister-ebay/classes/model/EbayShippingModel.php on line 19