Fatal error: Uncaught Error: Class "Guzzle\Common\Event\AbstractSubject" not found in /home/systemdecorcom/public_html/sg/util/nfephp/vendor/guzzlehttp/guzzle/tests/Guzzle/Tests/Mock/MockSubject.php:5 Stack trace: #0 {main} thrown in /home/systemdecorcom/public_html/sg/util/nfephp/vendor/guzzlehttp/guzzle/tests/Guzzle/Tests/Mock/MockSubject.php on line 5