Trail Gamepass adding to my game help??

I am trying to add rainbow trail into my game passes, but I dont how to do it. Can someone help me?

local passIDs = {
    971425430;
    000000000
}

function playerHasPass(plr)
    for _,id in pairs(passIDs) do
        if game:GetService("GamePassService"):PlayerHasPass(plr, id) then
            return true
        end
    end
    return false
end

game.Players.PlayerAdded:Connect(function(player)
    if playerHasPass(plr) then
        player.CharacterAdded:Connect(function(char)
            local trail = game.ServerStorage.Trail:Clone()
            trail.Parent = char.Head
            local attachment0 = Instance.new("Attachment",char.Head)
            attachment0.Name = "trailAttachment0"
            local attachment1 = Instance.new("Attachment",char.Torso)
            attachment1.Name = "TrailAttachment1"
            trail.Attachment0 = attachment0
            trail.Attachment1 = attachment1
        end)
    end
end)

Put the trail in ServerStorage and call it "Trail".