ServerScriptService.Script:29: attempt to get length of global 'Players' (a nil value) ?

local mode = true



game.Players.PlayerAdded:connect(function(plr)
    if mode == true then
        plr.TeamColor = game.Teams["Humans"].TeamColor
    else
        plr.TeamColor = game.Teams["Creepers"].TeamColor
    end
end)


while true do
    wait(1)
    if game.Players.NumPlayers > 1 then
        print "Starting game"

        for i = 5, 1, -1 do
            print(i .. " seconds until night")
            wait(1)
        end
        print "Night Begins"


local Plrs = game.Players:GetPlayers() 

local creeper = Plrs[math.random(1,#Players)]


print('Selected player was: ' ..creeper.Name)

else
    print "There needs to be 2 players to start"

end
end

script breaking at chosing random players?