Fatal error: Uncaught Error: Interface "TYPO3\CMS\Core\Security\ContentSecurityPolicy\SourceValueInterface" not found in /var/www/html/dev.hallescherfc.de/vendor/typo3/cms-core/Classes/Security/ContentSecurityPolicy/HashProxy.php:31 Stack trace: #0 {main} thrown in /var/www/html/dev.hallescherfc.de/vendor/typo3/cms-core/Classes/Security/ContentSecurityPolicy/HashProxy.php on line 31