fstack

[Taet]

i have problem , when i run this blizzard tool i take this bugg

Message: invalid key to 'next'
Time: 07/17/15 18:19:35
Count: 2
Stack: [C]: in function `SetFrameStack'
...e\AddOns\Blizzard_DebugTools\Blizzard_DebugTools.lua:693: in function `FrameStackTooltip_Toggle'
Interface\FrameXML\ChatFrame.lua:2340: in function `?'
Interface\FrameXML\ChatFrame.lua:4442: in function `ChatEdit_ParseText'
Interface\FrameXML\ChatFrame.lua:4096: in function `ChatEdit_SendText'
Interface\FrameXML\ChatFrame.lua:2705: in function <Interface\FrameXML\ChatFrame.lua:2698>
[C]: in function `UseAction'
Interface\FrameXML\SecureTemplates.lua:348: in function `handler'
Interface\FrameXML\SecureTemplates.lua:649: in function `SecureActionButton_OnClick'
[string "*:OnClick"]:2: in function <[string "*:OnClick"]:1>

Locals: (*temporary) = FrameStackTooltip {
 0 = <userdata>
 showRegions = true
 default = 1
 showHidden = false
}
(*temporary) = false
(*temporary) = true
(*temporary) = <unnamed> {
 overlay = <unnamed> {
 }
 UpdateTooltip = <function> defined @Interface\AddOns\oUF\elements\aura.lua:68
 isDebuff = true
 stealable = <unnamed> {
 }
 cd = <unnamed> {
 }
 filter = "HARMFUL"
 0 = <userdata>
 icon = <unnamed> {
 }
 count = <unnamed> {
 }
}
(*temporary) = <unnamed> {
 0 = <userdata>
 num = 2
 anchoredIcons = 2
 1 = <unnamed> {
 }
 2 = <unnamed> {
 }
 growth-y = "DOWN"
 createdIcons = 2
 visibleDebuffs = 2
 __owner = oUF_raidUnitButton2 {
 }
 ForceUpdate = <function> defined @Interface\AddOns\oUF\elements\aura.lua:452
 initialAnchor = "TOPRIGHT"
 spacing-x = 3
 growth-x = "LEFT"
 spacing-y = 3
 size = 18
}
(*temporary) = "1"

I use this code for debuff show :

local Debuffs = CreateFrame("Frame", nil, self)
		Debuffs.initialAnchor = "TOPRIGHT"
		Debuffs["growth-x"] = "LEFT"
		Debuffs["growth-y"] = "DOWN"
		Debuffs['spacing-x'] = 3
		Debuffs['spacing-y'] = 3
		Debuffs:SetPoint("TOPLEFT", self, "BOTTOMLEFT", 0, -4)
		
		Debuffs:SetHeight(cfg.heightR)
		Debuffs:SetWidth(cfg.widthR)
	
		Debuffs.num = 2
		Debuffs.size = cfg.buSizeRaid
		
		self.Debuffs = Debuffs

Any1 help me ?