Fatal error: Uncaught Error: Class "WP_REST_Response" not found in /var/www/andovercg/staging/wp-content/plugins/font-awesome/includes/class-fontawesome-rest-response.php:12 Stack trace: #0 {main} thrown in /var/www/andovercg/staging/wp-content/plugins/font-awesome/includes/class-fontawesome-rest-response.php on line 12