The values in my code wont save in the data store?

As in the title above, im not sure why my code isnt working, there are no errors but the values will not save at all.

local DataStoreService = game:GetService('DataStoreService')
local playerData = DataStoreService:GetDataStore('PlayerData')

local function onplayerjoin(player)
    local folder = Instance.new("Folder")
    folder.Name = "Locker"
    folder.Parent = player

    local ShirtA = Instance.new("BoolValue")
    ShirtA.Name = "LumberShirt"
    ShirtA.Parent = folder

    local PantsA = Instance.new("BoolValue")
    PantsA.Name = "NicePants"
    PantsA.Parent = folder


    local playeruserid = 'Player_'..player.UserId
    local data = playerData:GetAsync(playeruserid)
    if data then
        ShirtA.Value = data['LumberShirt']
        PantsA.Value = data['NicePants']
    else
        ShirtA.Value = false
        PantsA.Value = false
    end
end

local function create_table(player)
    local player_stats = {}
    for _, stat in pairs(player.Locker:GetChildren()) do
        player_stats[stat.Name] = stat.Value
    end
    return player_stats
end

local function onplayerexit(player)
    local player_stats = create_table(player)
    local success, err = pcall(function()
        local playeruserid = 'Player_'..player.UserId
        playerData:SetAsync(playeruserid, player_stats)
        print('Data saved')
    end)

    if not success then
        warn('Could not save data.')
    end
end

game.Players.PlayerAdded:Connect(onplayerjoin)
game.Players.PlayerRemoving:Connect(onplayerexit)