Fatal error: Uncaught Error: Class 'Magento\MediaStorage\Model\File\Uploader' not found in /home/esecureh/public_html/magdemo/vendor/magento/module-downloadable/Model/File/ContentUploader.php:18 Stack trace: #0 {main} thrown in /home/esecureh/public_html/magdemo/vendor/magento/module-downloadable/Model/File/ContentUploader.php on line 18