Please see
THIS THREAD. The solution to that error (and several others) is listed in the very first post.
If you either don't know how to edit Lua files, or simply don't have the time to do it yourself, you can get it already done for you by going
HERE and downloading the "fixed" version. It's the first news item at the top of the page, and the download link is in the homepage title bar. It's the "CARBONITE FAN UPDATE DOWNLOAD" text.
Please remember, though, that you just unzip the file to your "Interface\AddOns" folder and let it overwrite the existing Carbonite files.