my Crash InvalidOperationException 02185121

--BEGIN
Dump Time
02/18/2018 23:10:41

Exception
System.Exception: Caught exception invoking RPC PlayerInteract on Player!

Object reference not set to an instance of an object.


Stack:
   at TreeEntity.PickupLog(Player player, Guid logID)
   at TreeEntity.OnActInteract(InteractionContext context)
   at Eco.Gameplay.Interactions.InteractionExtensions.ExecuteUntilSuccess(IEnumerable`1 results)
   at Eco.Gameplay.Players.Player.PlayerInteract(InteractionInfo info)

   at Eco.Shared.Networking.RPCManager.TryInvoke(Object controller, String methodname, BSONObject bsonArgs, Object& result)
   at Eco.Shared.Networking.RPCManager.InvokeOn(BSONObject bson, Object controller, String methodname)
   at Eco.Shared.Networking.RPCManager.HandleReceiveRPC(INetClient client, BSONObject bson)
   at Eco.Shared.Networking.NetPort.ProcessBuffer()
   at Eco.Shared.Networking.NetPort.Update()
   at Eco.Plugins.Networking.Clients.Client.<.ctor>b__55_0()

--END DUMP--