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:79 Stack trace: #0 /var/www/html/vendor/doctrine/dbal/src/DriverManager.php(221): Doctrine\DBAL\Exception::driverRequired() #1 /var/www/html/vendor/doctrine/dbal/src/DriverManager.php(186): Doctrine\DBAL\DriverManager::createDriver(NULL, NULL) #2 /var/www/html/inc/dbal.inc.php(107): Doctrine\DBAL\DriverManager::getConnection(Array) #3 /var/www/html/inc/dbal.inc.php(63): Database_DBAL->tryToConnect() #4 /var/www/html/inc/base.inc.php(70): Database_DBAL->__construct(Array) #5 /var/www/html/inc/base.inc.php(32): initApplication() #6 /var/www/html/index.php(7): require_once('/var/www/html/i...') #7 {main} thrown in /var/www/html/vendor/doctrine/dbal/src/Exception.php on line 79