Fatal error: Uncaught Error: Interface "League\Config\ConfigurationInterface" not found in /home/slsiluser/public_html/service-portal-mobile-responsive/vendor/league/config/src/ReadOnlyConfiguration.php:19 Stack trace: #0 {main} thrown in /home/slsiluser/public_html/service-portal-mobile-responsive/vendor/league/config/src/ReadOnlyConfiguration.php on line 19