Fatal error: Uncaught Error: Class 'Doctrine\Common\Lexer\AbstractLexer' not found in /home/ffl2020/public_html/vendor/jms/serializer/src/Type/Lexer.php:13 Stack trace: #0 {main} thrown in /home/ffl2020/public_html/vendor/jms/serializer/src/Type/Lexer.php on line 13