Fatal error: Uncaught Error: Class "Doctrine\Common\Lexer\AbstractLexer" not found in /users/energydata/www/volkszaehler.org/vendor/doctrine/orm/lib/Doctrine/ORM/Query/Lexer.php:23 Stack trace: #0 {main} thrown in /users/energydata/www/volkszaehler.org/vendor/doctrine/orm/lib/Doctrine/ORM/Query/Lexer.php on line 23