Making a flashlight

[Anti_Lorax14]

im trying to make a flashlight system for my game
The issue is this error

Ive looked throughout the dev forum but no solutions are working for me

local uis = game:GetService("UserInputService")
local clonelight = game.ReplicatedStorage.SpotLight:Clone()
local ison = false
local db = 0.5

game.Players.PlayerAdded:Connect(function(plr)
	clonelight.Parent = plr.Character.Head
	local light = plr.Character.Head:FindFirstChild("SpotLight")
	
	uis.InputBegan:Connect(function(key)
		if key.KeyCode == Enum.KeyCode.F then
			if ison == false then
				ison = true
				light.Enabled = true
				wait(db)
			elseif ison == true then
				ison = false
				light.Enabled = false
				wait(db)
			end
		end
	end)
end)

please help

[Sir_Numb]

You have to wait until the character appears you are doing these action the moment the player is added and you should also wait for the character to be added

Player | Documentation - Roblox Creator Hub

local uis = game:GetService("UserInputService")
local clonelight = game.ReplicatedStorage.SpotLight:Clone()
local ison = false
local db = 0.5

game.Players.PlayerAdded:Connect(function(plr)
    plr.CharacterAdded:Connect(function(char)
        local head = plr.Character:WaitForChild("Head")
		clonelight.Parent = head
		local light = head:FindFirstChild("SpotLight")
		
		uis.InputBegan:Connect(function(key)
			if key.KeyCode == Enum.KeyCode.F then
				if ison == false then
					ison = true
					light.Enabled = true
					wait(db)
				elseif ison == true then
					ison = false
					light.Enabled = false
					wait(db)
				end
			end
		end)
    end)
end)

[ChickwensRule]

local character = plr.Character or plr.CharacterAdded:Wait()
local light = character.Head:FindFirstChild("SpotLight")

This will attempt to set a character variable to the player’s character. If the character doesn’t exist yet (hasn’t loaded), it will wait until it has loaded and then set the variable to the character.

Edit: Nevermind, the solution above is better, as the character would be updated whenever the player respawns.