Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/iunowfun/public_html/Webpanel2.3/vendor/mobiledetect/mobiledetectlib/tests/UserAgentTest.php:9 Stack trace: #0 {main} thrown in /home/iunowfun/public_html/Webpanel2.3/vendor/mobiledetect/mobiledetectlib/tests/UserAgentTest.php on line 9