Fatal error: Uncaught Error: Class 'Doctrine\Common\Lexer\AbstractLexer' not found in /mnt/volume_lon1_01/backend/admin/vendor/egulias/email-validator/src/EmailLexer.php:7 Stack trace: #0 {main} thrown in /mnt/volume_lon1_01/backend/admin/vendor/egulias/email-validator/src/EmailLexer.php on line 7