Fatal error: Uncaught Error: Class "WC_Shipping_Method" not found in /home/samipe/public_html/wp-content/plugins/flexible-shipping/classes/table-rate/flexible-shipping-settings.php:21 Stack trace: #0 {main} thrown in /home/samipe/public_html/wp-content/plugins/flexible-shipping/classes/table-rate/flexible-shipping-settings.php on line 21