activated plugin, and now nothing on my home page shows up

If i activate the plugin, then the home page goes blank and i see nothing. If i deactivate the plugin, then the home page shows up again. there are zero other plugins installed on this site, so I'm at a loss -- usually issues like this are plugin conflicts. but that's not the case here. I even switched the theme to Twenty Eleven 1.1 with no luck

any ideas?

http://geekestate.charlie.wphost.com/