Here is what I did to remove the error message.
Opened Carbonite.lua in notepad.
Searched for 'version is pretty old'
Commented out the print command.
local s="\n|cffff4040This version is pretty old.\n|rVisit |cff40ff40" .. Nx.WeS .. "|r and check for a newer version."
-- Nx.prt(s)
|