DuffedUI - Error when opening char window

2x FrameXML\CharacterFrame.lua:184: attempt to perform arithmetic on a nil value
FrameXML\CharacterFrame.lua:184: in function `CharacterFrame_TabBoundsCheck'
[string "*:OnShow"]:2: in function <[string "*:OnShow"]:1>
[C]: in function `Show'
FrameXML\UIParent.lua:3131: in function `ShowUIPanel'
FrameXML\CharacterFrame.lua:21: in function `ToggleCharacter'
[string "TOGGLECHARACTER0"]:1: in function <[string "TOGGLECHARACTER0"]:1>

Locals:
self = CharacterFrameTab1 {
 0 = <userdata>
 isSkinned = true
 Backdrop = <unnamed> {
 }
}
(*temporary) = nil
(*temporary) = nil
(*temporary) = CharacterFrame {
 0 = <userdata>
 TitleText = CharacterFrameTitleText {
 }
 portrait = CharacterFramePortrait {
 }
 LeftBorder = CharacterFrameLeftBorder {
 }
 ignoreFramePositionManager = true
 isInsetDone = true
 insetinsideright = <unnamed> {
 }
 insetinsideleft = <unnamed> {
 }
 insetinsidebottom = <unnamed> {
 }
 insetbottom = <unnamed> {
 }
 insetinsidetop = <unnamed> {
 }
 TopRightCorner = CharacterFrameTopRightCorner {
 }
 TopLeftCorner = CharacterFrameTopLeftCorner {
 }
 Bg = CharacterFrameBg {
 }
 CloseButton = CharacterFrameCloseButton {
 }
 RightBorder = CharacterFrameRightBorder {
 }
 TopBorder = CharacterFrameTopBorder {
 }
 ReputationTabHelpBox = <unnamed> {
 }
 TopTileStreaks = CharacterFrameTopTileStreaks {
 }
 TitleBg = CharacterFrameTitleBg {
 }
 BottomBorder = CharacterFrameBottomBorder {
 }
 insettop = <unnamed> {
 }
 OnLoad = <function> defined @SharedXML\SharedUIPanelTemplates.lua:860
 numTabs = 3
 BotRightCorner = CharacterFrameBotRightCorner {
 }
 Inset = CharacterFrameInset {
 }
 insetright = <unnamed> {
 }
 BotLeftCorner = CharacterFrameBotLeftCorner {
 }
 PortraitFrame = CharacterFramePortraitFrame {
 }
 selectedTab = 1
 insetleft = <unnamed> {
 }
}
(*temporary) = nil
(*temporary) = <function> defined @SharedXML\SharedUIPanelTemplates.lua:446
(*temporary) = CharacterFrameTab3 {
 0 = <userdata>
 isSkinned = true
 Backdrop = <unnamed> {
 }
}
(*temporary) = 0
(*temporary) = nil
(*temporary) = 36
(*temporary) = 88
(*temporary) = "attempt to perform arithmetic on a nil value"
NUM_CHARACTERFRAME_TABS = 3
CharTabtable = <table> {
}
CompareFrameSize = <function> defined @FrameXML\CharacterFrame.lua:170