Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /home/app3/public_html/service/vendor/guzzlehttp/guzzle/tests/Handler/EasyHandleTest.php:11 Stack trace: #0 {main} thrown in /home/app3/public_html/service/vendor/guzzlehttp/guzzle/tests/Handler/EasyHandleTest.php on line 11