Fatal error: Uncaught Error: Class "Magento\Backend\Controller\Adminhtml\Dashboard\AjaxBlock" not found in /home/airtimer/public_html/vendor/yotpo/magento2-module-yotpo-reviews/Controller/Adminhtml/Dashboard/YotpoReviews.php:7 Stack trace: #0 {main} thrown in /home/airtimer/public_html/vendor/yotpo/magento2-module-yotpo-reviews/Controller/Adminhtml/Dashboard/YotpoReviews.php on line 7