Fatal error: Uncaught Error: Class 'Doctrine\Common\Lexer\AbstractLexer' not found in /opt/lampp/htdocs/kuesioner/vendor/egulias/email-validator/EmailValidator/EmailLexer.php:7 Stack trace: #0 {main} thrown in /opt/lampp/htdocs/kuesioner/vendor/egulias/email-validator/EmailValidator/EmailLexer.php on line 7