Fatal error: Uncaught Error: Interface "MUTHSEV\Content\Parser\ParserInterface" not found in /var/www/html/dev.hallescherfc.de/packages/muthsevcontent/Classes/Parser/AbstractParser.php:12 Stack trace: #0 {main} thrown in /var/www/html/dev.hallescherfc.de/packages/muthsevcontent/Classes/Parser/AbstractParser.php on line 12