Why is data not saving even though it prints that it got saved...?

I have a script that saves data of a folder full of intvalues, when i enter the game and the values change, i leave and rejoin and no data have been saved to how i had it before i left. is it a script problem or a ingame problem? help

script:

there are not any errors in the output

local Players = game:GetService("Players")
local DataStoreService = game:GetService("DataStoreService")
local SaveDataStore = DataStoreService:GetDataStore("SaveData6")

local ReplicatedStorage = game:GetService("ReplicatedStorage")
local nametagPurchases = ReplicatedStorage:WaitForChild("NametagPurchases")
local firstPage = nametagPurchases.FirstPage


local function SavePlayerData(player)

    local success,errormsg = pcall(function()

        local SaveData = {}

        for i,stats in pairs(firstPage:GetChildren()) do

            if stats:IsA("IntValue") then

                SaveData[stats.Name] = stats.Value              

            end         
        end 
        print("saving player data...")
        SaveDataStore:SetAsync(player.UserId,SaveData)
    end)

    if not success then 
        return errormsg
    end   
end 


Players.PlayerAdded:Connect(function(player)

    local Stats = Instance.new("Folder")
    Stats.Name = "leaderstats"
    Stats.Parent = player

    local points = Instance.new("IntValue",Stats)
    points.Name = "Points"

    local Data = SaveDataStore:GetAsync(player.UserId)

    if Data then

        for i,stats in pairs(firstPage:GetChildren()) do

            if stats:IsA("IntValue") then

                    stats.Value = Data[stats.Name]                  

            end
        end  

    else

        print(player.Name .. " has no data.")

    end 
end)


Players.PlayerRemoving:Connect(function(player)

    local errormsg = SavePlayerData(player)

    if errormsg then 
        warn(errormsg)  
    end 
end)

game:BindToClose(function()
    for i,player in pairs(Players:GetPlayers()) do 

        local errormsg = SavePlayerData(player)
        if errormsg then
            warn(errormsg)
        end   
    end
    wait(2) 
end)