I'm a Dual Spec Death Knight on Wrath Classic, I'm not exactly sure what caused this to pop up - possibly swapping specs which for a brief period of time you actually have no Aura (Blood/Frost/Unholy) as a DK and need to apply it, which is a guess of what happened to cause it, but I can't be entirely confident. Lua posted below for you to review.
1x StatLogic\StatLogic-78899.lua:1184: Usage: GetShapeshiftFormInfo(index)
[string "=[C]"]: ?
[string "@StatLogic\StatLogic-78899.lua"]:1184: in function `validator'
[string "@StatLogic\StatLogic-78899.lua"]:1207: in function <StatLogic\StatLogic.lua:1202>
[string "@StatLogic\StatLogic-78899.lua"]:1253: in function <StatLogic\StatLogic.lua:1252>
[string "@StatLogic\StatLogic-78899.lua"]:1300: in function <StatLogic\StatLogic.lua:1290>
[string "=(tail call)"]: ?
[string "@RatingBuster\RatingBuster-1.3.8 (r$Revision: 78903 $).nil.lua"]:1938: in function <RatingBuster\RatingBuster.lua:1715>
[string "=(tail call)"]: ?
[string "@RatingBuster\RatingBuster-1.3.8 (r$Revision: 78903 $).nil.lua"]:1678: in function `ProcessLine'
[string "@RatingBuster\RatingBuster-1.3.8 (r$Revision: 78903 $).nil.lua"]:1560: in function `handler'
[string "@RatingBuster\libs\TipHooker-1.0\TipHooker-1.0-67029.lua"]:156: in function <...ns\RatingBuster\libs\TipHooker-1.0\TipHooker-1.0.lua:150>
[string "=[C]"]: ?
[string "=[C]"]: ?
[string "=[C]"]: ?
[string "=[C]"]: ?
[string "=[C]"]: ?
[string "=[C]"]: in function `SetBagItem'
[string "@FrameXML\ContainerFrame_Shared.lua"]:1333: in function <FrameXML\ContainerFrame_Shared.lua:1304>
[string "@tdBag2\UI\Item\ItemBase.lua"]:166: in function <tdBag2\UI\Item\ItemBase.lua:147>
Locals:
(*temporary) = 0
I'm a Dual Spec Death Knight on Wrath Classic, I'm not exactly sure what caused this to pop up - possibly swapping specs which for a brief period of time you actually have no Aura (Blood/Frost/Unholy) as a DK and need to apply it, which is a guess of what happened to cause it, but I can't be entirely confident. Lua posted below for you to review.