Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /home/app3/public_html/service/app/Helpers/html2text/vendor/phar-io/manifest/tests/values/ExtensionTest.php:26 Stack trace: #0 {main} thrown in /home/app3/public_html/service/app/Helpers/html2text/vendor/phar-io/manifest/tests/values/ExtensionTest.php on line 26