Fatal error: Uncaught Error: Class "TYPO3\CMS\Install\SystemEnvironment\DatabaseCheck\Platform\AbstractPlatform" not found in /home/cmsshareacopy/public_html/TYPO3/vendor/typo3/cms-install/Classes/SystemEnvironment/DatabaseCheck/Platform/MySql.php:40 Stack trace: #0 {main} thrown in /home/cmsshareacopy/public_html/TYPO3/vendor/typo3/cms-install/Classes/SystemEnvironment/DatabaseCheck/Platform/MySql.php on line 40