2020-11-29 18:45:17.942 - Thread:  39 ->     Exception while loading world: Object reference not set to an instance of an object.
2020-11-29 18:45:17.942 - Thread:  39 ->        at Arstraea.DefinitionManipulation.DefinitionManipulation_BlueprintClasses.LoadData()
   at Sandbox.Game.World.MySession.LoadComponent(MySessionComponentBase component)
   at Sandbox.Game.World.MySession.LoadDataComponents()
   at Sandbox.Game.World.MySession.PrepareBaseSession(MyObjectBuilder_Checkpoint checkpoint, MyObjectBuilder_Sector sector)
   at Sandbox.Game.World.MySession.Load(String sessionPath, MyObjectBuilder_Checkpoint checkpoint, UInt64 checkpointSizeInBytes, Boolean saveLastStates, Boolean allowXml)
   at Sandbox.Game.World.MySessionLoader.LoadDedicatedSession(String sessionPath, CancelToken cancelToken, Action afterLoad)