If you received a message indicating that your ticket has been revoked this shows that the organizer has made a change to your purchase. This could be because the event was canceled, or because of a requested change to your purchase - like a change of date or offer. If you have questions regarding the change to your purchase please reach out directly to the organizer for clarification.
You can reach the organizer by going to YOUR TICKETS and clicking on CONTACT THE ORGANIZER. This will open up a form that will allow you to send an email to the organizer.