Fatal error: Uncaught Error: Class "Doctrine\DBAL\Driver\AbstractException" not found in /home/demohost/hospital.demohost.in/vendor/doctrine/dbal/src/Driver/OCI8/Exception/Error.php:17 Stack trace: #0 {main} thrown in /home/demohost/hospital.demohost.in/vendor/doctrine/dbal/src/Driver/OCI8/Exception/Error.php on line 17