attempt to index nil with waitforchild()?

I am working on a singleplayer game and I want to create a flashlight, but the script I am using doesn't work.

Error: ServerScriptService.Other.FlashlightSetup:5: attempt to index nil with 'WaitForChild'

local players = game:GetService("Players")

local function createFlashlight()
    local character = game.Workspace:FindFirstChildWhichIsA("Model")
    local torso = character:WaitForChild("Torso") -- attempt to index nil with 'WaitForChild'

    local light = Instance.new("PointLight", torso)
    light.Name "flashlight"
    light.Color = "White"
    light.Enabled = false
    light.Brightness = 30
end

players.PlayerAdded:Connect(createFlashlight)