Fatal error: Uncaught Error: Class "WC_Shipping_Method" not found in /home/tcalculu/pmtdemo.tcalculus.com/wp-cont/pmt.tcalculus.com/wp-content/pluginsent/plugins/wc-multivendor-marketplace/includes/shipping-gateways/class-wcfmmp-shipping-by-zone.php:12 Stack trace: #0 {main} thrown in /home/tcalculu/pmtdemo.tcalculus.com/wp-cont/pmt.tcalculus.com/wp-content/pluginsent/plugins/wc-multivendor-marketplace/includes/shipping-gateways/class-wcfmmp-shipping-by-zone.php on line 12