How to get around the error?

Question

C++ / C#

I'm trying to make the player either get into a random room or create one

public void StartGame()
    {
                if (isConnected) JoinRoom();
                System.Threading.Thread.Sleep(2000);
                if (!IsInGame) CreateRoom();
    }

But I am getting an error:

Region Pinging Result: usw[5.188.110.5:5055]: 181ms 
Previous summary: usw;187;asia,au,cae,eu,in,jp,kr,ru,rue,sa,us,usw,za
UnityEngine.Debug:Log(Object)
Photon.Pun.PhotonNetwork:OnRegionsPinged(RegionHandler) (at Assets/packages/Photon/PhotonUnityNetworking/Code/PhotonNetworkPart.cs:2456)
Photon.Realtime.RegionHandler:OnPreferredRegionPinged(Region) (at Assets/packages/Photon/PhotonRealtime/Code/RegionHandler.cs:253)
Photon.Realtime.RegionPinger:RegionPingThreaded() (at Assets/packages/Photon/PhotonRealtime/Code/RegionHandler.cs:513)
Photon.Realtime.RegionPinger:RegionPingPooled(Object) (at Assets/packages/Photon/PhotonRealtime/Code/RegionHandler.cs:447)