Attempt to index nil with "Gold"? ( DataStoreService )

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1

Hello, Im OriChanRBLX, Im trying to make a PlayerData System that both saves the player inventory and player stats. But it always said 14:32:12.179 - ServerScriptService.PlayerData:39: attempt to index nil with 'Gold'. I’ve try many times and check it many times but I dont no why it still saying the error. This is my script:

local DataStoreService = game:GetService("DataStoreService")
local PlayerStats = DataStoreService:GetDataStore("PlayerData")
local SwordInvData = DataStoreService:GetDataStore("SwordInvData")

game.Players.PlayerAdded:Connect(function(plr)
	
	local Stats = Instance.new("Folder")
	Stats.Name = "Stats"
	Stats.Parent = plr
	local SwordInventory = Instance.new("Folder")
	SwordInventory.Name = "SwordInv"
	SwordInventory.Parent = plr
	local Gold = Instance.new("IntValue")
	Gold.Name = "Gold"
	Gold.Parent = Stats
	local Gems = Instance.new("IntValue")
	Gems.Name = "Gems"
	Gems.Parent = Stats
	local Rebirth = Instance.new("IntValue")
	Rebirth.Name = "Rebirth"
	Rebirth.Parent = Stats
	
	local plrUserId = "Player_".. plr.UserId
	
	-- Load Data
	
	local data
	local success, errormessage = pcall(function()
		data = PlayerStats:GetAsync(plrUserId)
	end)

	
	if success then
		Gold.Value = data.Gold
		Gems.Value = data.Gems
		Rebirth.Value = data.Rebirth
	end
	
	local InvData
	local success1, errormessage1 = pcall(function()
		InvData = SwordInvData:GetAsync(plrUserId)
		for i, v in pairs(InvData) do
			local NewChild = Instance.new("BoolValue")
			NewChild.Name = tostring(v)
			NewChild.Parent = SwordInventory
		end
	end)
end)


game.Players.PlayerRemoving:Connect(function(plr)
	
	local plrUserId = "Player_".. plr.UserId
	
	local StatsNeedToSave = {
		Gold = plr.Stats.Gold.Value;
		Gems = plr.Stats.Gems.Value;
		Rebirth = plr.Stats.Rebirth.Value;
	}
	
	local InventoryNeedToSave = {}
	
	local success, errormessage = pcall(function()
		PlayerStats:SetAsync(plrUserId, StatsNeedToSave)
		for i, v in pairs(plr.SwordInv:GetChildren()) do
			table.insert(InventoryNeedToSave, i, v)
		end
		SwordInvData:SetAsync(plrUserId, InventoryNeedToSave)
	end)
	
	if success then
		print("Player_"..plr.UserId.." data successfully saved!")
	else
		print("There was a error when trying to save player data")
		warn(errormessage)
	end
end)
2

In the case the player is new (or has their data set to nil for any reason), this will set data to nil, which is fully expected and not an error (success == true). So the if success then condition will pass but data will still be nil.

You can combat this by assigning some default data if the call returns nil:

local data
local success, errormessage = pcall(function()
	data = PlayerStats:GetAsync(plrUserId) or {}
end)
3

But by some reason, the data wasnt save or load…