Fatal error: Uncaught Error: Class "Orchestra\Testbench\TestCase" not found in /home2/santhos2/public_html/demo-ecom.firstmatrix.in.net/vendor/laravel/ui/tests/AuthBackend/AuthenticatesUsersTest.php:21 Stack trace: #0 {main} thrown in /home2/santhos2/public_html/demo-ecom.firstmatrix.in.net/vendor/laravel/ui/tests/AuthBackend/AuthenticatesUsersTest.php on line 21