1x RCLootCouncil\core.lua:2620: attempt to index field '?' (a nil value)
RCLootCouncil\core.lua:2620: in function GetButtonText' RCLootCouncil\Modules\lootFrame.lua:141: in function OnRoll'
RCLootCouncil\Modules\lootFrame.lua:271: in function <RCLootCouncil\Modules\lootFrame.lua:271>

Assuming you're using the first 2.7.2 release and didn't change something, this shouldn't be possible. Otherwise SV is required.

Incedently someone else posted an seemingly identical error - codewise I still can't see an potential error, but I am investigating.

It's very simple mistake actually

72c888d is bugged

Yup, just discovered it aswell.