Fatal error: Class 'Illuminate\Database\Connection' not found in /var/www/html/dev/spa/vendor/laravel/framework/src/Illuminate/Database/SqlServerConnection.php on line 9

Call Stack:
    0.0003     241936   1. {main}() /var/www/html/dev/spa/vendor/laravel/framework/src/Illuminate/Database/SqlServerConnection.php:0