Fatal error: Uncaught Error: Class "Magento\MediaGalleryUi\Controller\Adminhtml\Directories\GetTree" not found in /var/www/magento/html/generated/code/Magento/MediaGalleryUi/Controller/Adminhtml/Directories/GetTree/Interceptor.php:7 Stack trace: #0 {main} thrown in /var/www/magento/html/generated/code/Magento/MediaGalleryUi/Controller/Adminhtml/Directories/GetTree/Interceptor.php on line 7