Using latest version of classicLFG
error:
Interface addon failed because of an Addon

Taint.log:
12/17 18:12:06.202 An action was blocked because of taint from LFG -
12/17 18:12:06.202 SendChatMessage()
12/17 18:12:06.202 Interface\AddOns\LFG\src\lfg.lua:44 postInChannels()
12/17 18:12:06.202 Interface\AddOns\LFG\src\lfg_options.lua:128 callback()
12/17 18:12:06.202 Interface\SharedXML\C_TimerAugment.lua:16