Fatal error: Uncaught Error: Class "PHPUnit_Framework_TestCase" not found in /home/systemdecorcom/public_html/sg/vendor/firebase/php-jwt/tests/JWTTest.php:4 Stack trace: #0 {main} thrown in /home/systemdecorcom/public_html/sg/vendor/firebase/php-jwt/tests/JWTTest.php on line 4