Fatal error: Uncaught Error: Class "Doctrine\DBAL\Schema\Visitor\AbstractVisitor" not found in /home/u6668910/public_html/lab/vendor/doctrine/dbal/lib/Doctrine/DBAL/Schema/Visitor/Graphviz.php:30 Stack trace: #0 {main} thrown in /home/u6668910/public_html/lab/vendor/doctrine/dbal/lib/Doctrine/DBAL/Schema/Visitor/Graphviz.php on line 30