Warning: include(/srv/www/vhosts/itstuder.ch/subdomains/schlossruef/httpdocs/vendor/composer/../../typo3/sysext/core/Classes/Core/SystemEnvironmentBuilder.php): Failed to open stream: No such file or directory in /srv/www/vhosts/itstuder.ch/subdomains/schlossruef/httpdocs/vendor/composer/ClassLoader.php on line 576

Warning: include(): Failed opening '/srv/www/vhosts/itstuder.ch/subdomains/schlossruef/httpdocs/vendor/composer/../../typo3/sysext/core/Classes/Core/SystemEnvironmentBuilder.php' for inclusion (include_path='.:/opt/plesk/php/8.5/share/pear') in /srv/www/vhosts/itstuder.ch/subdomains/schlossruef/httpdocs/vendor/composer/ClassLoader.php on line 576

Fatal error: Uncaught Error: Class "TYPO3\CMS\Core\Core\SystemEnvironmentBuilder" not found in /srv/www/vhosts/itstuder.ch/subdomains/schlossruef/httpdocs/index.php:19 Stack trace: #0 /srv/www/vhosts/itstuder.ch/subdomains/schlossruef/httpdocs/index.php(21): {closure:/srv/www/vhosts/itstuder.ch/subdomains/schlossruef/httpdocs/index.php:17}() #1 {main} thrown in /srv/www/vhosts/itstuder.ch/subdomains/schlossruef/httpdocs/index.php on line 19