Camera not staying on object?

Help and Feedback Scripting Support
#1

Heyo! I have been wondering how I can make the camera just stay onto an object. I have a script that I learned from @Alvin_Blox’s plot system video. The only problem is that the camera won’t stay on the object.

local tweenservice = game:GetService("TweenService")

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

local worldsselect = script.Parent:WaitForChild("WorldSelect")

local frame = worldsselect:WaitForChild("Frame")
local left = frame:WaitForChild("Left")
local right = frame:WaitForChild("Right")

local worlds = game.Workspace.Worlds

camera.CameraType = Enum.CameraType.Scriptable

local function getworlds()
	local availableworlds = {}
	for i, world in pairs(worlds:GetChildren()) do
		table.insert(availableworlds, world.Name)
		table.sort(availableworlds)
		print(table.concat(availableworlds, ","))
	end
	return availableworlds
end

local tweeninfo = TweenInfo.new(
	0.5,
	Enum.EasingStyle.Quint,
	Enum.EasingDirection.InOut,
	0,
	false,
	0
)

local function cameratween(world)
	local cf = CFrame.new(game.Workspace.Worlds:FindFirstChild(world).Position + Vector3.new(0,120,0), game.Workspace.Worlds:FindFirstChild(world).Position)
	local tween = tweenservice:Create(game.Workspace.Camera, tweeninfo, {CFrame = cf})
	tween:Play()
end

local worldtable = getworlds()

local index = 1

player.SelectedWorld.Value = worldtable[1]
cameratween(player.SelectedWorld.Value)
print("Got here")

left.MouseButton1Click:Connect(function()
	if worlds:FindFirstChild("World "..index - 1) then
		index -= 1
	else
		index = 4
	end
	
	player.SelectedWorld.Value = worldtable[index]
	cameratween(worldtable[index])
end)

right.MouseButton1Click:Connect(function()
	if worlds:FindFirstChild("World "..index + 1) then
		index += 1
	else
		index = 1
	end
	
	player.SelectedWorld.Value = worldtable[index]
	cameratween(worldtable[index])
end)

Where did I go wrong?