Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/batukbha/public_html/include/PHPMailer/vendor/yoast/phpunit-polyfills/src/TestCases/XTestCase.php:33 Stack trace: #0 {main} thrown in /home/batukbha/public_html/include/PHPMailer/vendor/yoast/phpunit-polyfills/src/TestCases/XTestCase.php on line 33