Fatal error: Uncaught Error: Interface "GuzzleHttp\Event\SubscriberInterface" not found in /home2/cp334332/public_html/examcenter/vendor/google/auth/src/Subscriber/SimpleSubscriber.php:30 Stack trace: #0 {main} thrown in /home2/cp334332/public_html/examcenter/vendor/google/auth/src/Subscriber/SimpleSubscriber.php on line 30