whats wrong with my data currency saving code

[fallen yew]

code here

local DSS = game:GetService("DataStoreService")
local mainDS = DSS:GetDataStore("CashData")
local ReplicatedStorage = game:GetService("ReplicatedStorage")
local Events = ReplicatedStorage:FindFirstChild("Events")

game.Players.PlayerAdded:Connect(function(player)
local leaderstats = Instance.new("Folder", player)
leaderstats.Name = "leaderstats"

local Cash = Instance.new("IntValue", leaderstats)
Cash.Name = "Cash"

local data = mainDS:GetAsync(player.UserId)

if data then
    if data[1] then
        Cash.Value = data[1]
    end
end

end)

game.Players.PlayerRemoving:Connect(function(player)
local leaderstats = player:WaitForChild("leaderstats")
local Cash = leaderstats:WaitForChild("Cash")

mainDS:SetAsync(player.UserId, {Cash.Value})

end)

[worldly harness]

if data then
if data.Cash then
Cash.Value = data.Cash
end
end

local data = {['Cash'] = Cash.Value}
mainDS:SetAsync(player.UserId, data)

the first if statements go where you first load the data

And the last local data stuff goes where you were saving it after the cash variable

Typing on phone so correct spelling mistakes