Would this have something to do with the Vanish plugin? We are randomly losing players who get redtext kicked for this error. Any help would be immensly appreciated.

(20:36:55) |disconnecting: Exception (cs:52979): NullReferenceException: Object reference not set to an instance of an object. BasePlayer.VisUpdate () (at <00000000000000000000000000000000>:0) BasePlayer.UpdatePlayerVisibilities () (at <00000000000000000000000000000000>:0) BasePlayer.ClientCycle (System.Single deltaTime) (at <00000000000000000000000000000000>:0) Client.Update () (at <00000000000000000000000000000000>:0)