It's kind of hard to view the screenshot ... still, it looks like EventDaemon.pm is the culprit.
Wild guess here: have you created some event notification? If you had created an event that is triggered for very small values (say: notify me whenever the CPU is above 0%) it would keep try notifying you constantly, and this would lead to such a high CPU usage.
Try stopping the events daemon with: sudo service ebox events stop