Periodically throwed exception when in a room

Hello!
I use PUN 1.76 with Photon Cloud.
When in a room it periodically throws exception (not permanent but very often):

IndexOutOfRangeException: Array index is out of range.
PhotonStream.ReceiveNext () (at Assets/Photon Unity Networking/Plugins/PhotonNetwork/PhotonClasses.cs:1006)
PhotonView.DeserializeComponent (UnityEngine.Component component, .PhotonStream stream, PhotonMessageInfo info) (at Assets/Photon Unity Networking/Plugins/PhotonNetwork/PhotonView.cs:378)
PhotonView.DeserializeView (.PhotonStream stream, PhotonMessageInfo info) (at Assets/Photon Unity Networking/Plugins/PhotonNetwork/PhotonView.cs:340)
NetworkingPeer.OnSerializeRead (System.Object[] data, .PhotonPlayer sender, Int32 networkTime, Int16 correctPrefix) (at Assets/Photon Unity Networking/Plugins/PhotonNetwork/NetworkingPeer.cs:4102)
NetworkingPeer.OnEvent (ExitGames.Client.Photon.EventData photonEvent) (at Assets/Photon Unity Networking/Plugins/PhotonNetwork/NetworkingPeer.cs:2394)
ExitGames.Client.Photon.PeerBase.DeserializeMessageAndCallback (System.Byte[] inBuff)
ExitGames.Client.Photon.TPeer.DispatchIncomingCommands ()
ExitGames.Client.Photon.PhotonPeer.DispatchIncomingCommands ()
PhotonHandler.Update () (at Assets/Photon Unity Networking/Plugins/PhotonNetwork/PhotonHandler.cs:156)

There is no my functions in call-stack, so i don't understand what it means. Can you help?