I edited this script from an open-source starter place, does anyone know why when I test it my character disappears?

local camera = game.Workspace.CurrentCamera
local player = game.Players.LocalPlayer

camera.CameraType = Enum.CameraType.Scriptable

local targetDistance = 10
local cameraDistance = 5
local cameraDirection = Vector3.new(-10,0,0)

local currentTarget = cameraDirection*targetDistance
local currentPosition = cameraDirection*cameraDistance

game:GetService("RunService").RenderStepped:connect(function()
	local character = player.Character
	if character and character:FindFirstChild("Humanoid") and character:FindFirstChild("HumanoidRootPart") then
		local head = character.Head
		camera.Focus = head.CFrame
		if head:FindFirstChild("FastStart") == nil then
			camera.CoordinateFrame = 	CFrame.new(Vector3.new(head.Position.X, head.Position.Y + 10, head.Position.Z - 20) + currentPosition, 
										Vector3.new(head.Position.X,  head.Position.Y, head.Position.Z - 20) + currentTarget)
		else
			
			camera.CoordinateFrame = CFrame.new(Vector3.new(head.Position.X, head.Position.Y - 15, head.Position.Z - 20) + currentPosition, 
											    Vector3.new(head.Position.X,  head.Position.Y - 15, head.Position.Z - 20) + currentTarget)
		end
	end
end)
Anonymous