Game not detecting PlayerAdded?

Hey! I've got a problem when trying to run a PlayerAdded function in a Script. It works fine in Studio, but it simply doesn't fire the function in the real game.

Here's my code:

local DescenParent -- I put it here so I can access it from different functions

function PlayerAdded(plr)
	print(1) --I made this to check if the function was fired
	local WorkerDesk = script.Parent:GetDescendants() 
	local Scripts = plr:WaitForChild("Scripts"):WaitForChild("MScripts") --Gets the value of a stat i've done
	wait(0.2)
	for index, descendant in pairs(WorkerDesk) do
		if descendant.Name == "Worker" and Scripts.Value < 1 then --Checks if the descendant is a Worker and if the value is less than 1
			DescenParent = descendant.Parent --sets the DescenParent value to the current descendant parent, so I can return the model to that parent later
			descendant.Parent = game.ServerStorage --moves the models to ServerStorage, making them invisible/untouchable
		end
	end
	Scripts.Changed:Connect(function() --fires when the value is changed
		for index, descendant in pairs(WorkerDesk) do 
			if descendant.Name == "Worker" and Scripts.Value > 0 then --checks if the descendant is a worker and if the player has more than one scripts
				descendant.Parent = DescenParent --gives the models back to their last parent
			end
		end
	end)
end

game.Players.PlayerAdded:Connect(PlayerAdded) --Calls the function

I'm going to explain what I want to do so it is easier for you to understand the code objectives.

It is a game based in Mario 64 where you have to collect Scripts (just like mario stars). This code should make a group of workers (Not NPCs, just models) appear in a specific place when the player has at least 1 script.

--game
	--workspace
		--Desks(folder)
			--MScriptChecker(this script)
			--RandomModel1
			--RandomModel2
			--Worker(model)
			--Worker(model)
	--players
		--RandomPlayer1
			--Scripts(folder)
				--MScripts(NumValue)

I hope someone can help me with all the info I provided. I have been stuck so long in this code. I don't know why it doesn't fire any of the function. Thanks.