Fatal error: Uncaught Error: Interface "WPDesk_Flexible_Shipping_Labels_Builder" not found in /home/samipe/public_html/wp-content/plugins/flexible-shipping/vendor/wpdesk/wp-wpdesk-fs-shipment-interfaces/classes/label/class-integration-label-builder.php:11 Stack trace: #0 {main} thrown in /home/samipe/public_html/wp-content/plugins/flexible-shipping/vendor/wpdesk/wp-wpdesk-fs-shipment-interfaces/classes/label/class-integration-label-builder.php on line 11