Fatal error: Uncaught Error: Class "Orchestra\Testbench\TestCase" not found in /home/derrocha/shop.derrochandofacha.com.ar/vendor/laravel/ui/tests/AuthBackend/RegistersUsersTest.php:21 Stack trace: #0 {main} thrown in /home/derrocha/shop.derrochandofacha.com.ar/vendor/laravel/ui/tests/AuthBackend/RegistersUsersTest.php on line 21