Another issue - bad argument to 'random' (Interval is empty)?

So this script is you survive the round and you get a point and then you need to get teleported back to lobby and remove tools but its not working. Here is the script

for _, player in pairs(activecontestants) do
	if player then
	awardpoints(player, 1)
	if player.Character then
		local humanoid = player.Character:FindFirstChild("Humanoid")
		if humanoid then
			humanoid:UnequipTools()
		end
	end

	local randomspawn = lobbyspawns[math.random(#lobbyspawns)]
	player.Character:MoveTo(randomspawn.Position)

	local backpack = player:FindFirstChild("Backpack")
	if backpack then
		backpack:ClearAllChildren()
	end

Thanks. The issue is on line 11.