Error Attempt to upValue Suit (a nil value)?

---Line seven. What should I be looking for in the stringvalues and models?

local Suit = game.Lighting:findFirstChild(script.Parent.Suit.Value)
local Me = script.Parent.Parent.Parent.Parent.Parent.Character

function Click(mouse)
    script.Parent.Visible = true
    if Me:findFirstChild("Humanoid") ~= nil and Me:findFirstChild("Arm1") == nil then
        local g = Suit.Arm1:clone()
        g.Parent = Me
        local C = g:GetChildren()
        for i=1, #C do
            if C[i].className == "Part" then
                local W = Instance.new("Weld")
                W.Part0 = g.Middle
                W.Part1 = C[i]
                local CJ = CFrame.new(g.Middle.Position)
                local C0 = g.Middle.CFrame:inverse()*CJ
                local C1 = C[i].CFrame:inverse()*CJ
                W.C0 = C0
                W.C1 = C1
                W.Parent = g.Middle
            end
                local Y = Instance.new("Weld")
                Y.Part0 = Me["Left Arm"]
                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

    if Me:findFirstChild("Humanoid") ~= nil and Me:findFirstChild("Arm2") == nil then
        local g = Suit.Arm2:clone()
        g.Parent = Me
        local C = g:GetChildren()
        for i=1, #C do
            if C[i].className == "Part" then
                local W = Instance.new("Weld")
                W.Part0 = g.Middle
                W.Part1 = C[i]
                local CJ = CFrame.new(g.Middle.Position)
                local C0 = g.Middle.CFrame:inverse()*CJ
                local C1 = C[i].CFrame:inverse()*CJ
                W.C0 = C0
                W.C1 = C1
                W.Parent = g.Middle
            end
                local Y = Instance.new("Weld")
                Y.Part0 = Me["Right Arm"]
                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

    if Me:findFirstChild("Humanoid") ~= nil and Me:findFirstChild("Leg1") == nil then
        local g = Suit.Leg1:clone()
        g.Parent = Me
        local C = g:GetChildren()
        for i=1, #C do
            if C[i].className == "Part" then
                local W = Instance.new("Weld")
                W.Part0 = g.Middle
                W.Part1 = C[i]
                local CJ = CFrame.new(g.Middle.Position)
                local C0 = g.Middle.CFrame:inverse()*CJ
                local C1 = C[i].CFrame:inverse()*CJ
                W.C0 = C0
                W.C1 = C1
                W.Parent = g.Middle
            end
                local Y = Instance.new("Weld")
                Y.Part0 = Me["Left Leg"]
                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

    if Me:findFirstChild("Humanoid") ~= nil and Me:findFirstChild("Leg2") == nil then
        local g = Suit.Leg2:clone()
        g.Parent = Me
        local C = g:GetChildren()
        for i=1, #C do
            if C[i].className == "Part" then
                local W = Instance.new("Weld")
                W.Part0 = g.Middle
                W.Part1 = C[i]
                local CJ = CFrame.new(g.Middle.Position)
                local C0 = g.Middle.CFrame:inverse()*CJ
                local C1 = C[i].CFrame:inverse()*CJ
                W.C0 = C0
                W.C1 = C1
                W.Parent = g.Middle
            end
                local Y = Instance.new("Weld")
                Y.Part0 = Me["Right Leg"]
                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
    if Me:findFirstChild("Humanoid") ~= nil and Me:findFirstChild("Chest") == nil then
        local g = Suit.Chest:clone()
        g.Parent = Me
        local C = g:GetChildren()
                local R = Me:GetChildren()
        for i=1, #R do
            if R[i].className == "Hat" then
                R[i]:remove()
            end
        end
        for i=1, #C do
            if C[i].className == "Part" then
                local W = Instance.new("Weld")
                W.Part0 = g.Middle
                W.Part1 = C[i]
                local CJ = CFrame.new(g.Middle.Position)
                local C0 = g.Middle.CFrame:inverse()*CJ
                local C1 = C[i].CFrame:inverse()*CJ
                W.C0 = C0
                W.C1 = C1
                W.Parent = g.Middle
            end
                local Y = Instance.new("Weld")
                Y.Part0 = Me.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.MouseButton1Down:connect(Click)