Fatal error: Uncaught Error: Class "WP_REST_Controller" not found in /home/anirqfxq/public_html/wp-content/plugins/amp/src/Validation/ValidationCountsRestController.php:29 Stack trace: #0 {main} thrown in /home/anirqfxq/public_html/wp-content/plugins/amp/src/Validation/ValidationCountsRestController.php on line 29