Bad Argument (Interval Is Empty)?

The code is for a hide n seek game and there is 2 scripts so far. Im having trouble with line 16. Here is the code, please help me and thanks. And if you need the other script as well it is below this one.

Server Main

local replicatedStorage = game:GetService("ReplicatedStorage")
local serverStorage = game:GetService("ServerStorage")

local status = replicatedStorage.Values.Status

local playersToStart = 1

local function chooseSeeker(availablePlayers)
	return availablePlayers[math.random(1, #availablePlayers)]
end

local function teleportPlayers(availablePlayers,spawns)
	for _, player in pairs(availablePlayers) do
		if player.Character then
			if player.Character:FindFirstChild("HumanoidRootPart") then
				player.Character.HumanoidRootPart.CFrame = spawns[math.random(1, #spawns)].CFrame + Vector3.new(0,5,0)
			end
		end
	end
end

while wait(1) do
	
	repeat
		
		print("Not enough players in game!")
		status.Value = playersToStart.." players needed to start (/"..playersToStart..")"
		
		wait(1)
		
	until #game.Players:GetPlayers() >= playersToStart
	
	for i = 5,0,-1 do
		status.Value = "Next round starts in "..i.." seconds"
		wait(0.1)
		
	end
	
	local contestants = game.Players:GetPlayers()
	
	local seeker = chooseSeeker(contestants)
	
	status.Value = "The chosen seeker is... "
	wait(1)
	status.Value = seeker.Name.."!"
	
	wait(3)
	
	local map = game.Workspace.Map1
	
	teleportPlayers(contestants,map.Spawns:GetChildren())
	
	wait(5)
	
end

Client Main

local replicatedStorage = game:GetService("ReplicatedStorage")
local serverStorage = game:GetService("ServerStorage")

local status = replicatedStorage.Values.Status

local timer = replicatedStorage.Values.Timer

local playersLeft = replicatedStorage.Values.PlayersLeft

local HUD = script.Parent
local statusFrame = HUD:WaitForChild("Status")
local playersLeftFrame = HUD:WaitForChild("PlayersLeft")

statusFrame.StatusTitle.Text = status.Value

status:GetPropertyChangedSignal("Value"):Connect(function()
	statusFrame.StatusTitle.Text = status.Value
	statusFrame.TimeLeft.Text = timer.Value
	playersLeftFrame.PlayersLeft.Text = playersLeft.Value
end)

timer:GetPropertyChangedSignal("Value"):Connect(function()
	statusFrame.TimeLeft.Text = timer.Value
end)

playersLeft:GetPropertyChangedSignal("Value"):Connect(function()
	playersLeftFrame.PlayersLeft.Text = playersLeft.Value
end)

Fxicity