Error "timeout before resuming thread" not allowing me to test my game?

I made a game a while ago and was testing just fine for along time but I took a break and came back to it about a week ago and ever since then whenever I go into "Test" mode I get the error "timeout before resuming thread" on all my scripts. Whenever I go into play mode in studio it works just fine but whenever I add multiple people in test mode all of my scripts shut down and give me that same error. My scripts were working fine just fine but here is the Master script.

m = Instance.new("Message")

h = Instance.new("Hint")

m.Parent = game.Workspace

h.Parent = game.Workspace

players = game.Players:GetPlayers()

while true do if game.Players.NumPlayers >= 1 then

	--m.Text = "Loading-Please wait."

	wait(8)

	Spawns = game.Workspace.Elevator.Spawns1:GetChildren()

    Spawnz = game.Workspace.Spawns2:GetChildren()

	--m.Text = "Teleporting to Elevator"

	wait(4)

	--Choosing roles

	contestants = {players}

	for _, players in pairs(game.Players:GetPlayers()) do

		if players and players.Character then

			local humanoid = players.Character:WaitForChild("Humanoid")

			if humanoid and humanoid.Health > 0 then

				table.insert(contestants, players)

			end

		end

	end	
	
	Demon = players[math.random(1, #contestants)]
	
	--while true do

		randomplayer = players[math.random(1, #contestants)]

		if randomplayer ~= Demon then

		end
			Hunter = randomplayer

		wait(0.1)

	--end	

 backpack = game.Players:FindFirstChild("Backpack")
	
	if backpack then

		if players == Demon then

			local illuminati = game.ServerStorage.Knife:Clone()

			  illuminati.Parent = game.Players:FindFirstChild("StarterGear")

		elseif players == Hunter then
			local illuminboti = game.ServerStorage.RossRifle:Clone()

			illuminboti.Parent = game.Players:FindFirstChild("StarterGear")

		end

	end
	
	
	for i, v in pairs(game.Players:GetPlayers()) do

		 name = v.Name

		 check = game.Workspace:FindFirstChild(name)

		if check then

			checkHumanoid = check:FindFirstChild("Humanoid")

			if checkHumanoid then

				check:MoveTo(Spawns[i].Position)

			end

		end

	end
	
	--m.Text = "Game in progress"
	
	wait(45)
		
	
	for i, v in pairs(game.Players:GetPlayers()) do

		if checkHumanoid then

			check:MoveTo(Spawnz[i].Position)

		end

	end
	
--m.Text = "Round ended"

wait(5)

--m.Text = "Starting new round"

wait(5)

end

wait(0.1)

end

There isn't anything that I can think of that I added or removed that would cause that error. The whole hunter and demon selecting isn't finished yet so it doesn't work atm but it has stayed exactly the same since the script was running smoothly. I was trying to test the selecting to see if it worked but I got that error and it won't even run any of my scripts at all. It was working just fine before I don't think I did anything that would cause this but if anybody knows please help.

When it times out, it can be caused by a slow internet connection. If that is not the case, try researching the error. If it keeps happening try contacting ROBLOX Support.

I completely disagree with dotProgram

Although I may be wrong, I do not believe the timeout has anything to do with your internet connection.

This error can happen no matter the types of scripts in your game. However, this error can be simulated/caused by an infinite loop.

The error is thrown when roblox can't load the game. Normally this has to do with the quality of the computer and not the quality of the internet.

The error is safety so you don't lose your progress when testing your game.

There's no real fix. Make sure you have no infinite loops. If the problem persists, test the game on a server and if it works it may be your pc.

Good Luck.