Carbonite addon check the version using the global channel it makes in game (privacy & Com in options). If there is a version on a player that is newer than the one you have then is flags you for an update.
I guess someone had the file that was pulled running when you were on...
CARBONITE version 5.059 of CARBONITE is available
CARBONITE Visit wowinterface.com for an update
This is what I am getting from NxCom.lua file.
Line 1910 and beyond