How do I make gamepasses work these days?

ROBLOX has changed the IDs of gamepasses, and it's been driving me crazy. I've tried making them work with MarketplaceService, and GamePassService, and nothing works. Here's the script i have right now:

local Tools = script.Items:GetChildren()
local GamepassID = script.Configuration.GamepassID.Value

function GiveTools(Player)
    wait(0.5)
    if game:GetService("GamePassService"):PlayerHasPass(Player, GamepassID) then
        for _,Tool in pairs(Tools) do
            local NewTool1 = Tool:Clone()
            NewTool1.Parent = Player.Backpack
            local NewTool2 = Tool:Clone()
            NewTool2.Parent = Player.StarterGear
        end
    end
end

game:GetService("Players").PlayerAdded:connect(GiveTools)

Can anyone help?