I have a movement GUI that teleports a player around during a game. However, by the second round, it stops working. Why is it doing that?

Server Script (Part of it):

local function assignRoutes()
	local num = 1
	
	local routes = {
		{startingLocations.Bloxian1Start, bloxianTeleports.Bloxian1["Bloxian1[2]"],
		bloxianTeleports.Bloxian1["Bloxian1[3]"], bloxianTeleports.Bloxian1["Bloxian1[4]"],
		hallwayTeleports.Hallway1, doorTeleports.Door1},
		
		{startingLocations.Bloxian2Start, bloxianTeleports.Bloxian2["Bloxian2[2]"],
		hallwayTeleports.Hallway1, doorTeleports.Door1},
		
		{startingLocations.Bloxian3Start, bloxianTeleports.Bloxian3["Bloxian3[2]"],
		hallwayTeleports.Hallway2, doorTeleports.Door2},
		
		{startingLocations.Bloxian4Start, bloxianTeleports.Bloxian4["Bloxian4[2]"],
		bloxianTeleports.Bloxian4["Bloxian4[3]"], bloxianTeleports.Bloxian4["Bloxian4[4]"],
		hallwayTeleports.Hallway2, doorTeleports.Door2}
	}
	
	for _, plr in pairs(players) do
		if plr:WaitForChild("Info").Role.Value == "Bloxian" then
			assign:FireClient(plr, routes[num])
			num = num + 1
		end
	end
	
	print("Routes Given")
end

Local Script (In StarterCharacterScripts):

player = game.Players.LocalPlayer
character = player.Character or player.CharacterAdded:Wait()
humanoid = character:WaitForChild("Humanoid")
assignRoutes = game.ReplicatedStorage.Remotes.AssignRoutes
canPass1 = game.ReplicatedStorage.Remotes.CanPass1
canPass2 = game.ReplicatedStorage.Remotes.CanPass2
getWeapon = game.ReplicatedStorage.Remotes.GetWeapon
door1 = workspace.EmptyHouse.Door1.Closed
door2 = workspace.EmptyHouse.Door2.Closed
gui = player:WaitForChild("PlayerGui"):WaitForChild("BloxianPanel").EmptyHouseNavigation

assignRoutes.OnClientEvent:Connect(function(route)
	print("Route Received")
	local index = 1
	local timer = 0
	humanoid.WalkSpeed = 0
	humanoid.JumpPower = 0
	character:MoveTo(route[index].Position)
	gui.MoveOn.Visible = false
	wait(8)
	gui.MoveOn.Visible = true
	
	gui.MoveOn.MouseButton1Click:Connect(function()
		timer = 0
		if index == #route then
			if route[index] == workspace.EmptyHouse.BloxianTeleports.DoorTeleports.Door1 then
				if not canPass1:InvokeServer() then
					character:MoveTo(workspace.EmptyHouse.BloxianTeleports.JumpscareZone.Position)
					humanoid.WalkSpeed = 16
					humanoid.JumpPower = 50
					getWeapon:FireServer()
					gui.MoveOn.Visible = false
					return
				else
					index = 0
				end
			end
			
			if route[index] == workspace.EmptyHouse.BloxianTeleports.DoorTeleports.Door2 then
				if not canPass2:InvokeServer() then
					character:MoveTo(workspace.EmptyHouse.BloxianTeleports.JumpscareZone.Position)
					humanoid.WalkSpeed = 16
					humanoid.JumpPower = 50
					getWeapon:FireServer()
					gui.MoveOn.Visible = false
					return
				else
					index = 0
				end
			end
		end
		index = index + 1
		character:MoveTo(route[index].Position)
		
		gui.MoveOn.Visible = false
		wait(8)
		gui.MoveOn.Visible = true
		
		while true do
			if gui.MoveOn.Visible == true then
				wait(1)
				timer = timer + 1
				if timer == 8 then
					index = 1
					character:MoveTo(route[index].Position)
					break
				end
			else
				break
			end
		end
	end)
end)
Anonymous