Fatal error: Uncaught Error: Class 'Illuminate\Database\Connection' not found in /var/www/html/test-project/my-app/vendor/laravel/framework/src/Illuminate/Database/PostgresConnection.php:16 Stack trace: #0 {main} thrown in /var/www/html/test-project/my-app/vendor/laravel/framework/src/Illuminate/Database/PostgresConnection.php on line 16