Fatal error: Uncaught Error: Interface 'Symfony\Component\CssSelector\Parser\Handler\HandlerInterface' not found in /var/www/typo3/vendor/symfony/css-selector/Parser/Handler/IdentifierHandler.php:30 Stack trace: #0 {main} thrown in /var/www/typo3/vendor/symfony/css-selector/Parser/Handler/IdentifierHandler.php on line 30