Guerrilla's Recent Tweets Widget not working

Hello wordpress support forum!

I’m feeling a little exasperated. I have been using the Guerrilla’s Recent Tweets Widget, and it was working fine for a while, but as of the last week or so I’ve noticed that it just plain does not work. I tried installing a completely different twitter stream widget, and it didn’t work either. In fact, the only twitter widget that seems to work at all is the one that comes from Twitter, but it creates a big ugly box that just doesn’t look any good on the website.

Have any of you seen anything like this before? Any ideas what it could be? I feel like I’ve reached my witt’s end with this.

The website in question can be found here:
http://tingtang.thinktankprm.com/