Failed to load sound, unable to download sound data?

The output states : Failed to load sound 6519564325: Unable to download sound data

local part = script.Parent
local isplaying = false
local soundService = game:GetService("SoundService")
local plr = game.Players.LocalPlayer

local function playLocalSound(soundId)
    if isplaying then 
        return
    end
    isplaying = true
    local sound = soundService.Sound
    sound.SoundId = soundId
    soundService:PlayLocalSound(sound)
    sound.Ended:Wait()
    isplaying = false
end

local function onTouch(hit)
    playLocalSound(6519564325)

    local h = hit.Parent:FindFirstChild("Humanoid")

    if h then 
        local player = game.Players:GetPlayerFromCharacter(hit.Parent)
        if player then
            if player.leaderstats.Grades.Value > 0 then
                local selling = player.leaderstats.Grades
                local getting = player.leaderstats.Money

                getting.Value = getting.Value + selling.Value
                selling.Value = 0
            end
        end
    end
end

part.Touched:Connect(onTouch)

I tried adding "rbxassetid://" but I don't know if it should be a string or anything.