Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /home/wittyly/public_html/live/wittymanager-api/vendor/lcobucci/jwt/test/functional/RsaTokenTest.php:23 Stack trace: #0 {main} thrown in /home/wittyly/public_html/live/wittymanager-api/vendor/lcobucci/jwt/test/functional/RsaTokenTest.php on line 23