Fatal error: Uncaught Error: Class 'Cardinity\Tests\ClientTestCase' not found in /home/roahcom/public_html/storage/vendor/cardinity/cardinity-sdk-php/tests/PaymentTest.php:7 Stack trace: #0 {main} thrown in /home/roahcom/public_html/storage/vendor/cardinity/cardinity-sdk-php/tests/PaymentTest.php on line 7