Calendar Widget populating in preview, but not on live page

Just as the title says. My calendar widget/page was working and I happen to just check on it today and neither the main calendar widget or the preview/side calendar populate all of the events that I have published. When I view the page in preview/percussion everything is populated and looks great, but when I publish the page and view it live, nothing populates on the page. Does anyone know why this might happen? 

Link to the live calendar page:
http://www.elms.edu/calendar/index

Hello Andrew,

The calendar is populated by our DTS service, and there are some errors in the web console when trying to display this information.

We will open a support ticket to get more details about your installation to resolve this.

Regards,
Keith

This issue was resolved after restarting the DTS service.  The DTS log files did not give us a clue as to why this happened, but if the issue happens again we will investigate further.