Fatal error: Uncaught Error: Interface 'Illuminate\Database\ConnectionInterface' not found in /var/www/html/test-project/my-app/vendor/laravel/framework/src/Illuminate/Database/Connection.php:27 Stack trace: #0 {main} thrown in /var/www/html/test-project/my-app/vendor/laravel/framework/src/Illuminate/Database/Connection.php on line 27