Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/alkhalaffamily/public_html/poets/vendor/lcobucci/jwt/test/unit/Signer/KeychainTest.php:14 Stack trace: #0 {main} thrown in /home/alkhalaffamily/public_html/poets/vendor/lcobucci/jwt/test/unit/Signer/KeychainTest.php on line 14