After update, homepage not showing widgets, footer (but other pages okay)

I just updated both WordPress and Catch Box themes to the latest versions for our website (http://paxtag.org). However, this seems to have broken the homepage. There's just a single headline, no slider, no widgets, no footer. However, if you navigate to a post or page, the widgets and footers look fine - it seems to be just the homepage that is having problems. I'm stumped where to look for things that affect only the homepage. Is it something with the slider? I deleted all custom css related to the slider, but no change. Any suggestions for fixes would be appreciated. Thank you, CB