How can i fix the Error On Knife.Handle Part?

local Fire = Instance.new("Fire", Knife.Handle) Fire.Color = Color3.fromRGB(255, 102, 204) Guys there's Erorr on Knife Part, and how can i fix it?

local db = 0
script.Parent.Activated:Connect(function()
    if db == 0 then
        db = 1
        local f = Instance.new("Fire")
        local t = script.Parent
        f.Parent = t
    end
end)
script.Parent.Deactivated:Connect(function()
    script.Parent.Fire:Destroy()
    db = 0
end)

If you put that inside a normal script inside the tool it will create a fire when the player clicks while holding the tool. If you have any questions please post them below.

If this helped please up vote and accept this answer.

All the best,

PrismaticFruits