Fatal error: Uncaught Error: Class "TYPO3\CMS\Core\Resource\AbstractFile" not found in /home/cmsshareacopy/public_html/TYPO3/vendor/typo3/cms-core/Classes/Resource/File.php:31 Stack trace: #0 {main} thrown in /home/cmsshareacopy/public_html/TYPO3/vendor/typo3/cms-core/Classes/Resource/File.php on line 31