Entire script randomly stopped working?

My entire script has just stopped working and I have no idea why please help.

local dss = game:GetService("DataStoreService")

local module = {}

game.Players.PlayerAdded:Connect(function(plr)
	--Trainer Name
	
	local name = Instance.new("StringValue")
	name.Parent = plr
	name.Name = "TrainerName"
	name.Value = dss:GetDataStore("PlrName"):GetAsync(plr.userId) or ""

	print(name.Value)
	
	game.ReplicatedStorage.Events.SetPlayerName:FireClient(plr, name.Value)
	
	--leaderstats
	
	local leaderstats = Instance.new("Folder")
	leaderstats.Parent = plr
	leaderstats.Name = "leaderstats"
	
	local badges = Instance.new("IntValue")
	badges.Parent = leaderstats
	badges.Name = "Badges"
	badges.Value = dss:GetDataStore("PlayerBadges"):GetAsync(plr.userId) or 0
	
	local pos = Instance.new("Vector3Value", plr)
	pos.Name = "Position"
	
	plr.CharacterAdded:Connect(function(char)
		while true do
			wait(1)
			pos.Value = char.PrimaryPart.Position
			print(pos.Value)
		end
	end)
end)

game.ReplicatedStorage.Events.LoadGame.OnServerEvent:Connect(function(player)
	module.LoadData(player)
end)

module.LoadData = function(plr)
	if dss:GetDataStore("PlayerPosition"):GetAsync(plr.userId) then
		game.ReplicatedStorage.Events.LoadGameResponse:FireClient(plr)
		plr.Character.PrimaryPart.Position = Vector3.new(dss:GetDataStore("PlayerPosition"):GetAsync(plr.userId).x,dss:GetDataStore("PlayerPosition"):GetAsync(plr.userId).y,dss:GetDataStore("PlayerPosition"):GetAsync(plr.userId).z)
	end
	
	require(script.Parent.PlayerData).data.party = dss:GetDataStore("PlayerDataParty"):GetAsync(plr.userId).party or {}
	
	for i, v in pairs(require(script.Parent.PlayerData).data.party) do
		print(v.Name)
	end
end

game.Players.PlayerRemoving:Connect(function(plr)
	--Player Position
	
	dss:GetDataStore("PlayerPosition"):SetAsync(plr.userId, {
		x = plr.Position.Value.X,
		y = plr.Position.Value.Y,
		z = plr.Position.Value.Z
	})
	
	--PlayerData
	
	local party = {}
	for i, v in pairs(require(script.Parent.PlayerData).data.party) do
		party['Index'..i] = v
		wait()
	end
	dss:GetDataStore("PlayerDataParty"):SetAsync(plr.userId, {party = party})
end)

return module