How Can i change my cursor Color to red while cursor is on a something damagable?

damagables is a table that holds objects with damagable tags. i tried something like this but im getting addempting to call method 'FindFirstChild' (a nil value)

spawn(function()
	if player.Character:WaitForChild("Weapon") then
		if damagables:FindFirstChild(mouse.Target)then
			mouse.Icon = "http://www.roblox.com/asset/?id=3220002314"
		else
			mouse.Icon = "http://www.roblox.com/asset/?id=94643450"
		end
	end
end)

Hi, what are tou adding at the damagable table? If you are adding the Name of the object then you can try something like this:

spawn(function()
    if player.Character:WaitForChild("Weapon") then
        if damagables[mouse.Target.Name] then
            mouse.Icon = "http://www.roblox.com/asset/?id=3220002314"
        else
            mouse.Icon = "http://www.roblox.com/asset/?id=94643450"
        end
    end
end)

I think this should work.