Making this give random weapon out Server storage?

It keeps getting error..it needs to be when they touch it, it will give them a random weapon out of server storage

RespawnTime = 1200
Debounce = false

script.Parent.Touched:connect(function (Hit)
    local HumanoidIsFound = Hit.Parent:FindFirstChild("Humanoid")
    local PlayerIsFound = game.Players:GetPlayerFromCharacter(Hit.Parent)
    if Hit.Parent and HumanoidIsFound and HumanoidIsFound.Health > 0 and PlayerIsFound then
        if not Debounce then
            Debounce = true
            local Weapon = (game.ServerStorage:GetChildren())[math.random(1,NumWeapons)]
            if Weapon then
                local newWeapon = Weapon:Clone()
                newWeapon.Parent = PlayerIsFound.Backpack
            else
                Debounce = false
                return

            end
            wait(RespawnTime)
            Debounce = false
        end
    end
end)