Fatal error: Uncaught Error: Class "WP_REST_Controller" not found in /home/traildw/www/wp-content/upgrade-temp-backup-old/plugins/jetpack/_inc/lib/core-api/wpcom-endpoints/memberships.php:15 Stack trace: #0 {main} thrown in /home/traildw/www/wp-content/upgrade-temp-backup-old/plugins/jetpack/_inc/lib/core-api/wpcom-endpoints/memberships.php on line 15