Fatal error: Uncaught Error: Class "WP_REST_Controller" not found in /home/worx/public_html/domains/worxgroup.net/public_html/wp-content/plugins/spellbook/includes/api/class-rest-products-controller.php:3 Stack trace: #0 {main} thrown in /home/worx/public_html/domains/worxgroup.net/public_html/wp-content/plugins/spellbook/includes/api/class-rest-products-controller.php on line 3