Fatal error: Uncaught Error: Class "Doctrine\Common\Lexer\AbstractLexer" not found in /home/demohost/hospital.demohost.in/vendor/egulias/email-validator/src/EmailLexer.php:9 Stack trace: #0 {main} thrown in /home/demohost/hospital.demohost.in/vendor/egulias/email-validator/src/EmailLexer.php on line 9