Countdown timer starts at 0 and not the correct number, it does not countdown as well, how to fix?

commands.timer = function(sender, arguments)
    local Timer = arguments[1]

    print(Timer)

    if Timer then
        for p, v in pairs(game.Players:GetChildren()) do
            local timerc = RS.Timer:Clone()
            timerc.Parent = v.PlayerGui

        for i = 0, Timer, -1 do
            timerc.Outer.Inner.TextLabel.Text = i
        end
        end
    end
end

pretty certain thats all. Last time I checked it was that the first number was the minimum and the second was the max and the third was in what direction it goes in. like this:

min = 1
max = 10
direction = 1

for i = min, max, direction do
	print(i)
end
-- Should print:
1
2
3
4
5
6
7
8
9
10

Because you had -1 as the direction it's clear you want it going down. But in the order you originally had you'd have to change the -1 to a 1 to make it go up.

Because you had "Timer" at the start, it thinks that's the min and the 0 is the max, so it starts at 0 and ends at 0 because of the way you're doing it. Hopefully this helped