Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/kadkahwi/public_html/hub.kadkahwindigital.my/vendor/league/oauth1-client/tests/XingServerTest.php:12 Stack trace: #0 {main} thrown in /home/kadkahwi/public_html/hub.kadkahwindigital.my/vendor/league/oauth1-client/tests/XingServerTest.php on line 12