My leaderstats script is not working properly?

It says line:76 attempt to index local 'PlayersFolder' (a nil value)

and also when the player leaves the folder doesnt delete or go it stays in the server

Additional Info: The stats script is in Workspace and I make the players stats folder go in ServerStorage

local DataStore = game:GetService("DataStoreService"):GetDataStore("OnePieceUltimateTreasurePreAlpha")

game.Players.PlayerAdded:connect(function(plr)
	local PlayerStats = Instance.new("Folder", game.ServerStorage)
	PlayerStats.Name = plr.Name
	local Level = Instance.new("IntValue", PlayerStats)
	Level.Name = "Level"
	Level.Value = 1
	local LevelEXP = Instance.new("IntValue", PlayerStats)
	LevelEXP.Name = "LevelEXP"
	LevelEXP.Value = 0
	local Melee = Instance.new("IntValue", PlayerStats)
	Melee.Name = "Melee"
	Melee.Value = 1
	local MeleeEXP = Instance.new("IntValue", PlayerStats)
	MeleeEXP.Name = "MeleeEXP"
	MeleeEXP.Value = 0
	local Sword = Instance.new("IntValue", PlayerStats)
	Sword.Name = "Sword"
	Sword.Value = 1
	local SwordEXP = Instance.new("IntValue", PlayerStats)
	SwordEXP.Name = "SwordEXP"
	SwordEXP.Value = 0
	local Sniper = Instance.new("IntValue", PlayerStats)
	Sniper.Name = "Sniper"
	Sniper.Value = 1
	local SniperEXP = Instance.new("IntValue", PlayerStats)
	SniperEXP.Name = "SniperEXP"
	SniperEXP.Value = 0
	local Armament = Instance.new("IntValue", PlayerStats)
	Armament.Name = "Armament"
	Armament.Value = 0
	local ArmamentEXP = Instance.new("IntValue", PlayerStats)
	ArmamentEXP.Name = "ArmamentEXP"
	ArmamentEXP.Value = 0
	local Conqueror = Instance.new("IntValue", PlayerStats)
	Conqueror.Name = "Conqueror"
	Conqueror.Value = 0
	local ConquerorEXP = Instance.new("IntValue", PlayerStats)
	ConquerorEXP.Name = "ConquerorEXP"
	ConquerorEXP.Value = 20
	local Berry = Instance.new("IntValue", PlayerStats)
	Berry.Name = "Berry"
	Berry.Value = 1
	
	
	local specialkey = "player-"..plr.userId
	
	local GetSaved = DataStore:GetAsync(specialkey)
	
	if GetSaved then
		Level.Value = GetSaved[1]
		LevelEXP.Value = GetSaved[2]
		Melee.Value = GetSaved[3]
		MeleeEXP.Value = GetSaved[4]
		Sword.Value = GetSaved[5]
		SwordEXP.Value = GetSaved[6]
		Sniper.Value = GetSaved[7]
		SniperEXP.Value = GetSaved[8]
		Armament.Value = GetSaved[9]
		ArmamentEXP.Value = GetSaved[10]
		Conqueror.Value = GetSaved[11]
		ConquerorEXP.Value = GetSaved[12]
		Berry.Value = GetSaved[13]
	else
		local ForSaving = {Level.Value, LevelEXP.Value, Melee.Value, MeleeEXP.Value, Sword.Value, SwordEXP.Value, Sniper.Value, SniperEXP.Value, Armament.Value, ArmamentEXP.Value, Conqueror.Value, ConquerorEXP.Value, Berry.Value}
		DataStore:SetAsync(specialkey, ForSaving)
				
	end
end)


game.Players.PlayerRemoving:connect(function(plr)
	local PlayersFolder = game.ServerStorage:FindFirstChild(plr.Name)
	local specialkey = "player-"..plr.userId
	local SaveTable = {PlayersFolder.Level.Value, PlayersFolder.LevelEXP.Value, PlayersFolder.Melee.Value, PlayersFolder.MeleeEXP.Value, PlayersFolder.Sword.Value, PlayersFolder.SwordEXP.Value, PlayersFolder.Sniper.Value, PlayersFolder.SniperEXP.Value, PlayersFolder.Armament.Value, PlayersFolder.ArmamentEXP.Value, PlayersFolder.Conqueror.Value, PlayersFolder.ConquerorEXP.Value, PlayersFolder.Berry.Value}
	DataStore:SetAsync(specialkey, SaveTable)
end)

For starters, the reason the player's folder doesn't remove is because you never made it remove when they leave.

You'll need to add:

PlayersFolder:Destroy()

Right before end when they're leaving.

As for the main issue, no idea, sorry.

EDIT1:

Found out the issue!

Since in studio, it is still there, you need to add a wait() at the beginning of the anon. function, to show that they're not equal in times of running. I don't know any other way to explain it, but add wait() first.