I'm trying to make a simple loop that levels a player up every 30 seconds. At first I was getting a nil value because I assumed that the folder "LevelsInfo" hadn't been created yet. I added a WaitForChild function to wait for the instance to appear within the player, but that didn't work either. The error I'm currently getting with the provided script below is: ServerScriptService.LevelSetUp:32 attempt to index nil with 'WaitForChild'

game.Players.PlayerAdded:Connect(function(player)
	local levelInfo = Instance.new("Folder")
	levelInfo.Name = "LevelsInfo"
	levelInfo.Parent = player
	
	local level = Instance.new("IntValue")
	level.Name = "Level"
	level.Value = 1
	level.Parent = levelInfo
	
	local exp = Instance.new("IntValue")
	exp.Name = "Experience"
	exp.Value = 0
	exp.Parent = levelInfo
	
	local xpNeeded = 5 * 1.01 ^ level.Value
	
	exp.Changed:Connect(function(newExp)
		if newExp >= xpNeeded then
			level.Value +=1
			exp.Value -=xpNeeded
			xpNeeded = 5 * 1.01
		end
	end)
end)

local function levelUp()
	player.LevelsInfo.Experience.Value = player.LevelsInfo.Experience.Value + 1
	wait (30)
end

player:WaitForChild("LevelsInfo"):levelUp()
Anonymous