Fatal error: Uncaught Error: Class 'Doctrine\Common\Lexer\AbstractLexer' not found in /home/itscm/dev.its.cm/itsgateway/vendor/doctrine/common/lib/Doctrine/Common/Lexer.php:23 Stack trace: #0 {main} thrown in /home/itscm/dev.its.cm/itsgateway/vendor/doctrine/common/lib/Doctrine/Common/Lexer.php on line 23