Fatal error: Uncaught Error: Class "Doctrine\DBAL\Driver\AbstractSQLServerDriver" not found in /var/www/html/booking/vendor/laravel/framework/src/Illuminate/Database/PDO/SqlServerDriver.php:7 Stack trace: #0 {main} thrown in /var/www/html/booking/vendor/laravel/framework/src/Illuminate/Database/PDO/SqlServerDriver.php on line 7