R6 backpack script not working on R15? Tried fixing script not showing up.

Hi! My backpacks have already been scripted, and work properly in giving the player tools, the only problem is they do not show up on an R15 character, I have the script for the torso, but it only works in r6 which is what im used to. But I would like to upgrade it to R15, so I did some experiments with using the accessory property menu and positioning it to the character, but the script ended up just breaking any suggestions?

function onTouched(hit)

if hit.Parent:findFirstChild("Humanoid") ~= nil and hit.Parent:findFirstChild("Chest") == nil then

local g = script.Parent.Parent.Chest:clone()

g.Parent = hit.Parent

local C = g:GetChildren()

for i=1, #C do

if C[i].className == "Part" or C[i].className == "UnionOperation" then

local W = Instance.new("Weld")

W.Part0 = g.Middle

W.Part1 = C[i]

W.Part1 = C[i]

local CJ = CFrame.new(g.Middle.Position)

local CJ = CFrame.new(g.Middle.Position)

local C0 = g.Middle.CFrame:inverse()*CJ

W.C0 = C0

W.C1 = C1

W.Parent = g.Middle

end

local Y = Instance.new("Weld")

Y.Part0 = hit.Parent.Torso

Y.Part1 = g.Middle

Y.C0 = CFrame.new(0, 0, 0)

Y.Parent = Y.Part0

end

local h = g:GetChildren()

for i = 1, # h do

h[i].Anchored = false

h[i].CanCollide = false

end

end

end

script.Parent.Touched:connect(onTouched)

local model = script.Parent.Parent.Parent

local backpack = model.Backpack:clone()

script.Parent.Touched:connect(function(hit)

local h = hit.Parent:findFirstChild("Humanoid")	

backpack.Parent = h.Parent

backpack.Handle.Anchored = false

end)

function onTouched(hit)
	if hit.Parent:FindFirstChild("Humanoid") ~= nil and hit.Parent:FindFirstChild("HumanoidRootPart") == nil then
		local g = script.Parent.Parent.HumanoidRootPart:Clone()
		g.Parent = hit.Parent
		local C = g:GetChildren()
		for i = 1, #C do
			if C[i].ClassName == "Part" or C[i].ClassName == "UnionOperation" then
				local W = Instance.new("Weld")
				W.Part0 = g.Middle
				W.Part1 = C[i]
				W.Part1 = C[i]
				local CJ = CFrame.new(g.Middle.Position)
				local C0 = g.Middle.CFrame:inverse() * CJ
				W.C0 = C0
				W.C1 = C1
				W.Parent = g.Middle
			end
			local Y = Instance.new("Weld")
			Y.Part0 = hit.Parent.HumanoidRootPart
			Y.Part1 = g.Middle
			Y.C0 = CFrame.new(0, 0, 0)
			Y.Parent = Y.Part0
		end
		local h = g:GetChildren()
		for i = 1, #h do
			h[i].Anchored = false
			h[i].CanCollide = false
		end
	end
end

script.Parent.Touched:Connect(onTouched)

local model = script.Parent.Parent.Parent
local backpack = model.Backpack:clone()

script.Parent.Touched:Connect(function(hit)
	local h = hit.Parent:FindFirstChild("Humanoid")
	backpack.Parent = h.Parent
	backpack.Handle.Anchored = false
end)