Fatal error: Uncaught Error: Class 'TYPO3\CMS\Core\Core\SystemEnvironmentBuilder' not found in /var/www/nan-minisites/public/index.php:19 Stack trace: #0 /var/www/nan-minisites/public/index.php(21): {closure}() #1 {main} thrown in /var/www/nan-minisites/public/index.php on line 19