Broker_carbonite is not maintained by Rythal, it is maintained by Therzok...
The problem is Broker_carbonite is calling an old function and needs to be updated.. But until Carbonite is made to work, there is no point updating it as things could change at any moment..
Best advice is to wait until Carbonite is in a "release" stage and out of development, then contact Therzok by leaving a post on the Curse page for Broker_carbonite (
http://www.curse.com/addons/wow/ldb_carbonite)