Fatal error: Uncaught Error: Interface "League\Event\ListenerInterface" not found in /home/slsiluser/public_html/service-portal-mobile-responsive/vendor/league/event/src/AbstractListener.php:5
Stack trace:
#0 {main}
thrown in /home/slsiluser/public_html/service-portal-mobile-responsive/vendor/league/event/src/AbstractListener.php on line 5