Gold and EXP will only stay at 10 and not go anything past 10?

when you kill a mob in the rpg, it gives 5 gold and 5 xp but no matter how many times you kill something or how much xp and gold you get, it will not go past 10. please help here is the script

local datastore = game:GetService("DataStoreService"):GetDataStore("MyRPGDataStore") --Call "GameStore" whatever you like


game.Players.PlayerAdded:connect(function(player)
    local leaderstats = Instance.new("IntValue")
    leaderstats.Name = "leaderstats"
    leaderstats.Parent = player

    local xd = Instance.new("IntConstrainedValue")
    xd.Name = "Level"
    xd.Parent = leaderstats
    xd.Value = 1
    xd.MaxValue = workspace:FindFirstChild("GameSettings").MaxLevel.Value
    xd.MinValue = 0

    local qe = Instance.new("IntConstrainedValue")
    qe.Name = "EXP"
    qe.Parent = leaderstats
    qe.Value = 0
    xd.MaxValue = workspace:FindFirstChild("GameSettings").MaxEXP.Value
    xd.MinValue = 0

    local ss = Instance.new("IntConstrainedValue")
    ss.Name = "Gold"
    ss.Parent = leaderstats
    ss.Value = 0
    xd.MaxValue = workspace:FindFirstChild("GameSettings").MaxGold.Value
    xd.MinValue = 0

    local key = "user-" .. player.userId

    local storeditems = datastore:GetAsync(key)
    if storeditems then
        xd.Value = storeditems[1]
        qe.Value = storeditems[2]
        ss.Value = storeditems[3]
    else
        local items = {xd.Value, qe.Value, ss.Value}
        datastore:SetAsync(key, items)
    end

    while wait(120) do
        local stats = player:FindFirstChild("leaderstats")
        local aitems = {stats.Level.Value, stats.EXP.Value, stats.Gold.Value}
        local key = "user-" .. player.userId
    datastore:SetAsync(key, aitems)
    end
end)

game.Players.PlayerRemoving:connect(function(player)
    local stats = player:FindFirstChild("leaderstats")
    local items = {stats.Level.Value, stats.EXP.Value, stats.Gold.Value}
    local key = "user-" .. player.userId
    datastore:SetAsync(key, items)
end)