Fatal error: Uncaught Error: Interface "Symfony\Component\DependencyInjection\Extension\ExtensionInterface" not found in /var/www/html/dev.hallescherfc.de/vendor/helmich/typo3-typoscript-parser/src/TypoScriptParserExtension.php:18 Stack trace: #0 {main} thrown in /var/www/html/dev.hallescherfc.de/vendor/helmich/typo3-typoscript-parser/src/TypoScriptParserExtension.php on line 18