Unhandled Exception: System.NullReferenceException: Object reference not set to an instance of an object
  at System.Timers.Timer.StartTimer () [0x00000]
  at (wrapper delegate-invoke) System.MulticastDelegate:invoke_void ()
[BUG]   [12-16 05:10:14] System.InvalidOperationException: out of sync
  at System.Collections.Generic.Dictionary`2+Enumerator[libsecondlife.LLUUID,OpenSim.Region.Environment.Scenes.ScenePresence].VerifyState () [0x00000]
  at System.Collections.Generic.Dictionary`2+Enumerator[libsecondlife.LLUUID,OpenSim.Region.Environment.Scenes.ScenePresence].MoveNext () [0x00000]
  at System.Collections.Generic.Dictionary`2+ValueCollection+Enumerator[libsecondlife.LLUUID,OpenSim.Region.Environment.Scenes.ScenePresence].MoveNext () [0x00000]
  at OpenSim.Region.Environment.Scenes.Scene.ForEachScenePresence (System.Action`1 action) [0x00000]

Unhandled Exception: System.NullReferenceException: Object reference not set to an instance of an object
  at System.Timers.Timer.StartTimer () [0x00000]
  at (wrapper delegate-invoke) System.MulticastDelegate:invoke_void ()
Segmentation fault