Fatal error: Uncaught Error: Class 'Symfony\Component\VarDumper\Dumper\AbstractDumper' not found in /home/app/htdocs/message_gateway_20231016/vendor/symfony/var-dumper/Dumper/CliDumper.php:21 Stack trace: #0 {main} thrown in /home/app/htdocs/message_gateway_20231016/vendor/symfony/var-dumper/Dumper/CliDumper.php on line 21