Fatal error: Uncaught Error: Class "TYPO3\CMS\Install\Configuration\AbstractCustomPreset" not found in /home/cmsshareacopy/public_html/TYPO3/vendor/typo3/cms-install/Classes/Configuration/Cache/CustomCachePreset.php:26 Stack trace: #0 {main} thrown in /home/cmsshareacopy/public_html/TYPO3/vendor/typo3/cms-install/Classes/Configuration/Cache/CustomCachePreset.php on line 26