Fatal error: Uncaught Error: Class "Illuminate\Foundation\Testing\TestCase" not found in /home/app/htdocs/truebits.docker.installations/invoice-crater/docker.app/crater/tests/TestCase.php:10 Stack trace: #0 {main} thrown in /home/app/htdocs/truebits.docker.installations/invoice-crater/docker.app/crater/tests/TestCase.php on line 10