Fatal error: Uncaught Error: Interface "Dhii\Events\Event\IsPropagationStoppedCapableInterface" not found in /var/www/html1/wp-content/plugins/zettle-pos-integration/modules/inpsyde-state-machine/src/Event/StateChange.php:10 Stack trace: #0 {main} thrown in /var/www/html1/wp-content/plugins/zettle-pos-integration/modules/inpsyde-state-machine/src/Event/StateChange.php on line 10