Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/gbc4/public_html/qrme/vendor/srmklive/paypal/tests/Unit/ClientTest.php:11 Stack trace: #0 {main} thrown in /home/gbc4/public_html/qrme/vendor/srmklive/paypal/tests/Unit/ClientTest.php on line 11