Fatal error: Uncaught Error: Interface "React\Promise\ExtendedPromiseInterface" not found in /opt/lampp/htdocs/myhospitalnow/suitecrm--/vendor/react/promise/src/Promise.php:5 Stack trace: #0 {main} thrown in /opt/lampp/htdocs/myhospitalnow/suitecrm--/vendor/react/promise/src/Promise.php on line 5