Events Plus - Countdown in widget not working

I'm using events+ to register events at boltgunshq.com. Go to the home page, on the left sidebar I have a text widget using the countdown shortcode from events+ to display an event. However, instead of displaying the next event, it's displaying 'closed'.
Here is the event in question.

[event_countdown type="flip" size="70"] is the shortcode I'm using in a text widget.