Fatal error: Uncaught Error: Class 'Doctrine\Common\Lexer\AbstractLexer' not found in /home1/heyerarc/public_html/updates/concrete5-8.5.5_remote_updater/concrete/vendor/doctrine/common/lib/Doctrine/Common/Lexer.php:35 Stack trace: #0 {main} thrown in /home1/heyerarc/public_html/updates/concrete5-8.5.5_remote_updater/concrete/vendor/doctrine/common/lib/Doctrine/Common/Lexer.php on line 35