Fatal error: Uncaught Error: Class "Doctrine\Common\Lexer\AbstractLexer" not found in /home/alterna/private_assets.alternalab.it/vendor/doctrine/common/lib/Doctrine/Common/Lexer.php:23 Stack trace: #0 {main} thrown in /home/alterna/private_assets.alternalab.it/vendor/doctrine/common/lib/Doctrine/Common/Lexer.php on line 23