Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/petclap/public_html/production/vendor/phar-io/manifest/tests/xml/ContainsElementTest.php:8 Stack trace: #0 {main} thrown in /home/petclap/public_html/production/vendor/phar-io/manifest/tests/xml/ContainsElementTest.php on line 8