Photon Server Lan

Hi, I am trying to create a LAN game without internet connection using Photon Server. I am able to join the lobby just fine, but when try to create a room, I get this error:
Operation 227 failed in a server-side plugin. Check the configuration in the Dashboard. Message from server-plugin: Failed to create game on http://photon-photon-pluginsdk-v1.webscript.io/GameCreate? : 'The remote name could not be resolved: 'photon-photon-pluginsdk-v1.webscript.io'' httpcode=-1 webstatus=1 response='', HttpQueueResult=5.
UnityEngine.Debug:LogError(Object)
NetworkingPeer:OnOperationResponse(OperationResponse) (at Assets/Photon Unity Networking/Plugins/PhotonNetwork/NetworkingPeer.cs:1149)
ExitGames.Client.Photon.PeerBase:DeserializeMessageAndCallback(Byte[])
ExitGames.Client.Photon.TPeer:DispatchIncomingCommands()
ExitGames.Client.Photon.PhotonPeer:DispatchIncomingCommands()
PhotonHandler:Update() (at Assets/Photon Unity Networking/Plugins/PhotonNetwork/PhotonHandler.cs:125)


Do I need to include any other information?