4x ...aceSVUI_Skins\components\blizzard\system.lua:574: Usage: UnitIsUnit("unit", "otherUnit")
[C]: in function UnitIsUnit' ...aceSVUI_Skins\components\blizzard\system.lua:574: in function <...aceSVUI_Skins\components\blizzard\system.lua:574> [C]: ? [C]: ? [C]: ? [C]: in function Show'
FrameXML\ReadyCheck.lua:14: in function `ShowReadyCheck'
FrameXML\ReadyCheck.lua:51: in function <FrameXML\ReadyCheck.lua:49>

Locals:
(*temporary) = "player"
(*temporary) = nil

Fixed.