How can I modify a part's position using a for loop?

Hello

I have tried moving a part to my HumanoidRootPart with a for loop using this code:

function onClick(noot)
    local val = script.Parent.Parent.TextBox.Value.Value
    local text = script.Parent.Parent.TextBox
    val = text.Text
    local plr = game.Players:FindFirstChild(val)
    local val2 = script.Parent.Parent.dis.Value.Value
    local text2 = script.Parent.Parent.dis
    val2 = text2.Text
    local item = game.ServerStorage.SponsorItems:FindFirstChild(val2)
    if plr and plr.Character and plr.Character:FindFirstChild("Arm1") and item then
        if val2 == "Food" then
            local foood = item.Food:getChildren()
            -- local clone = foood[math.random(1,#foood)]:Clone()
            local e = plr.Character.HumanoidRootPart.Position
            local ab = Vector3.new(e.x, e.y, e.z)
            for i = 1, ab, .5 do
                game.Workspace.Sponsor.Position = game.Workspace.Sponsor.Position + i
            end
        end
    end
end

script.Parent.MouseButton1Click:connect(onClick)

However, it doesn't seem to work, and I don't see the error in the console. Hierarchy: http://prntscr.com/is98wi

While we're at it, do you guys/girls also know how I can clone food in the plr's backpack when the "Sponsor" part touches the HumanoidRootPart?

Thanks