I want to reset Checkpoints when spesific events fire (?)

First of all im gonna explain my game, my game is a obby game but you are chasing by npc if npc catchs you, you lose your all Checkpoints. The problem is i dont know how to reset checkpoints, here is my codes:

local Checkpoints = script.Parent


for i,v in pairs(Checkpoints:GetChildren()) do
	if v:IsA("BasePart") then
		v.Touched:Connect(function(hit)
			if hit.Parent:FindFirstChild("HumanoidRootPart") then
				local player = game.Players:GetPlayerFromCharacter(hit.Parent)
				if player then
					if player.leaderstats.Checkpoint.Value < tonumber(v.Name) then
						player.leaderstats.Checkpoint.Value = tonumber(v.Name)
					end	
				end	
			end	
		end)	
	end
end

.

game.Players.PlayerAdded:Connect(function(Player)
	local leaderstats = Instance.new("Folder", Player)
	leaderstats.Name = "leaderstats"

	local Checkpoint = Instance.new("IntValue", leaderstats)
	Checkpoint.Name = "Checkpoint"
	Checkpoint.Value = 1

	Player.CharacterAdded:Connect(function(Character)
		repeat wait() until Player.Character ~= nil
		local checkpoint = game.Workspace.Checkpoints:FindFirstChild(Checkpoint.Value)
		Character:WaitForChild("HumanoidRootPart").CFrame = CFrame.new(checkpoint.Position + Vector3.new(0,2,0))
	end)

end)

I tried to reset like this but it didnt work,

wait()
local dum = game.Workspace.CellatBaba
local players = game:GetService("Players")
local lead = game.Players:WaitForChild("leaderstats", 1)

game.Workspace.CellatBaba.Hitbox.Touched:Connect(function(hit)
	local Player = game.Players:GetPlayerFromCharacter(hit.Parent)
	if game.Players:GetPlayerFromCharacter(hit.Parent) then
		game.Workspace.CellatBaba:SetPrimaryPartCFrame(CFrame.new(0,0,0))
		hit.Parent.Humanoid.Health = 0 
		Player.leaderstats.Checkpoint.Value = 0
		
	end 	    
end)	

Player.leaderstats.Checkpoint.Value = 0

i thought doing that i can reset checkpoints but i cannot, what should i do ?