Attempt to Index nil with..?

So I am trying to make a Leveling System. To gain EXP, you must touch a block. The script is within the Part that needs to be touched. Now, I am getting an error that says ' attempt to index nil with 'LevelsInfo'' The problem is, the script isn't able to find the LevelsInfo which is a Fold with String Values within the Player. I know that I will more than likely have to use a Local Script for this, but why won't it work with a Local Script. If it is possible though to use a normal Script, how would I go about doing that. This is the line that it gets into trouble at 'player.LevelsInfo.Experience.Value += expToGain' Thanks in the long run! -XRangerGuyX

local part = script.Parent
local debounce = false``

part.Touched:Connect(function(hit)
	
	local player = game.Players:GetPlayerFromCharacter(hit.Parent)
	
	if not debounce then
		debounce = true
		
		local playersFinished = 0
	
		wait(3)
		if playersFinished == 0 then
			
			print("A Player Has Finished!")
			
			local expToGain = 3
			
			playersFinished += 1
			
			player.LevelsInfo.Experience.Value += expToGain
			
		elseif playersFinished >= 2 then
			print("A 2nd Player Has Finished!")

			local expToGain = 1

			player.LevelsInfo.Experience.Value += expToGain
		end
		wait(1)
		debounce = false
	end	
end)

Maybe try

player:FindFirstChild("LevelsInfo"):FindFirstChild("Experience").Value +=expToGain

?