Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/ntseahrz/pos.ntseuae.com/vendor/gladcodes/keygen/tests/Keygen/KeygenTest.php:9 Stack trace: #0 {main} thrown in /home/ntseahrz/pos.ntseuae.com/vendor/gladcodes/keygen/tests/Keygen/KeygenTest.php on line 9