Fatal error: Uncaught Error: Class "Magento\AdminNotification\Block\System\Messages\UnreadMessagePopup" not found in /var/www/magento/html/generated/code/Magento/AdminNotification/Block/System/Messages/UnreadMessagePopup/Interceptor.php:7 Stack trace: #0 {main} thrown in /var/www/magento/html/generated/code/Magento/AdminNotification/Block/System/Messages/UnreadMessagePopup/Interceptor.php on line 7