All in One Events – feeds not updating automatically

We’re using All in One Events plugin to synchronize calendars between 2 websites. The feed is from a Google calendar. It’s almost working.

Only thing that isn’t working is the automatic updates.

We have it set to automatically update hourly. But, it doesn’t automatically update. I have to go in and force an update by clicking the update button in the Calendar Feeds configuration section.

Thanks in advance for your help 🙂

These are the 2 website
http://gavinharrison.net/calendar-of-events.html