In my script it says Argument 2 missing or nil and i dont know how to fix it? [closed]

local PlayerDataManager = {}

local DataStoreService = game:GetService("DataStoreService")
local taps = DataStoreService:GetDataStore("Taps")

--Table to hold player data
local sessionData = {}

--Function to add player to sessionData
local function setupPlayerData(Player)
    print("Test to setup")
end

--This function will save player data when they leave the game
local function saveOnExit(Player)
    --We got in
    --Saving Data when a player leaves
    local success, errormassage = pcall(function()
        taps:SetAsync ("Player_" .. Player.leaderstats.Taps.Value)
    end)
    if success then
        print ("Player data was saved ")
    else
        print("There was an error when saving data")
        warn (errormassage)-- this is the problem
    end
end

game.Players.PlayerRemoving:Connect(saveOnExit)-- this will call the function when a player leaves


return PlayerDataManager

16:56:54.622 - Clicking(Beta) auto-recovery file was created

There was an error when saving data

16:57:06.559 - Argument 2 missing or nil

16:57:07.085 - Disconnect from ::ffff:127.0.0.1|59144