Why is this armor script not working ?

Issue sounds like it's just finding the handle part, which could just be a misspelling, easy to do. This will attempt to find the handle, capitalised or lower case, and if not, print the name of every part in the model. (Some things may be wrong, I'm on a phone atm.) If things still are wrong, print screen the model's expanded view in explorer, upload to imgur/twitter/whatever and comment both the link and what the output says for below.

local Kagune = script.Parent
Local Handle = Kagune:findFirstChild("Handle") or Kagune:findFirstChild("handle)
	local Character = game. Players. LocakPlayer.Character 
	local K = Kagune:GetChildren()
	for i=1, #K do
	if K[i].ClassName == "Part" and Handle then
	local W = Instance.new("Weld")
	W.Part0 = Handle
	W.Part1 = K[i]
	local HP = CFrame.new(Handle.Position)
	local C0V = Handle.CFrame:inverse()*HP
	local C1V = K[i].CFrame:inverse()*HP
	W.C0 = C0V
	W.C1 = C1V
	W.Parent = Handle
    Else
Print(K[I].Name) --if the handle can't be found, prints name of all existing parts.
	end
	local W2 = Instance.new("Weld")
	W2.Part0 = Character.Torso
	W2.Part1 = Handle
	W2.C0 = CFrame.new(0, 0, 0)
	W2.Parent = W2.Part0
	K[i].Anchored = false
	K[i].CanCollide = false
	K[i].Parent = Character
	end