Fatal error: Uncaught Error: Interface "League\Event\EmitterInterface" not found in /home/slsiluser/public_html/service-portal-mobile-responsive/vendor/league/event/src/Emitter.php:7 Stack trace: #0 {main} thrown in /home/slsiluser/public_html/service-portal-mobile-responsive/vendor/league/event/src/Emitter.php on line 7