Chat not Popping Up

Hey, so I'm a premium member and have installed a whole bunch of your plugins on my new site (which I'm trying to model after this one!) I installed "Chat," and it was working for the longest time, but it seems like since the WP update (all my WPMUDEV plugins are updated too) the plugin doesn't work. The box in the bottom right corner shows up saying "click here to chat," but if you click, nothing happens. Please help, I'd like to launch soon! :smiley: Thanks!