( ! ) Fatal error: Uncaught Doctrine\DBAL\Exception: The options 'driver' or 'driverClass' are mandatory if no PDO instance is given to DriverManager::getConnection(). in /var/www/html/vendor/doctrine/dbal/src/Exception.php on line 78
( ! ) Doctrine\DBAL\Exception: The options 'driver' or 'driverClass' are mandatory if no PDO instance is given to DriverManager::getConnection(). in /var/www/html/vendor/doctrine/dbal/src/Exception.php on line 78
Call Stack
#	Time	Memory	Function	Location
1	0.0001	438952	{main}( )	.../index.php:0
2	0.0001	439312	require_once( '/var/www/html/inc/base.inc.php )	.../index.php:7
3	0.0005	530264	initApplication( )	.../base.inc.php:34
4	0.0009	539664	Database_DBAL->__construct( $config = ['frontend' => ['host' => 'db', 'uid' => 'root', 'pwd' => 'rHH3J6qpwizkoTb1hrH1', 'dbname' => 'frontend', 'port' => '3306', 'driver' => 'pdo_mysql'], 'patlist' => ['host' => NULL, 'uid' => NULL, 'pwd' => NULL, 'dbname' => NULL, 'port' => NULL, 'driver' => NULL], 'medical' => ['host' => NULL, 'uid' => NULL, 'pwd' => NULL, 'dbname' => NULL, 'port' => NULL, 'driver' => NULL], 'sampleorg' => ['host' => NULL, 'uid' => NULL, 'pwd' => NULL, 'dbname' => NULL, 'port' => NULL, 'driver' => NULL]] )	.../base.inc.php:72
5	0.0011	549856	Database_DBAL->tryToConnect( )	.../dbal.inc.php:63
6	0.0012	552824	Doctrine\DBAL\DriverManager::getConnection( $params = '[Sensitive Parameter]', $config = ???, $eventManager = ??? )	.../dbal.inc.php:107
7	0.0012	553520	Doctrine\DBAL\DriverManager::createDriver( $driver = NULL, $driverClass = NULL )	.../DriverManager.php:186