Fatal error: Uncaught Error: Class "TYPO3\CMS\Core\Upgrades\ReferenceIndexUpdatedPrerequisite" not found in /home/cmsshareacopy/public_html/TYPO3/vendor/typo3/cms-core/DeprecatedClasses/ext-install/Updates/ReferenceIndexUpdatedPrerequisite.php:30 Stack trace: #0 {main} thrown in /home/cmsshareacopy/public_html/TYPO3/vendor/typo3/cms-core/DeprecatedClasses/ext-install/Updates/ReferenceIndexUpdatedPrerequisite.php on line 30