Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/oyaagyug/public_html/vendor/lcobucci/jwt/test/functional/UnsignedTokenTest.php:19 Stack trace: #0 {main} thrown in /home/oyaagyug/public_html/vendor/lcobucci/jwt/test/functional/UnsignedTokenTest.php on line 19