Instances are destroyed by switching scenes.

Hello I am a user of Orthello 2D. I’m sorry for my English beforehand.
While switching my scenes I got and error.
I have added OT and OTSpriteAtlasCocos2D on hierarchy-view.
When I debug and switch some scenes by button inside scenes,It happens.
I think when recreate my scenes again,my OT object(this is prefab) is not ready yet.
Does somebody knows how to solve this problem?
I guess I need to specify some properties…

 MissingReferenceException: The object of type 'OT' has been destroyed but you are still trying to access it.
    Your script should either check if it is null or you should not destroy the object.
    UnityEngine.Component.get_transform () (at C:/BuildAgent/work/cac08d8a5e25d4cb/Runtime/ExportGenerated/Editor/UnityEngineComponent.cs:21)
    OT._RegisterContainer (.OTContainer container) (at Assets/Orthello/Standard Assets/OT/_Base/OT.cs:2508)
    OT.RegisterContainer (.OTContainer container) (at Assets/Orthello/Standard Assets/OT/_Base/OT.cs:1244)
    OTContainer.RegisterContainer () (at Assets/Orthello/Standard Assets/OT/Graphics/Sprites/OTContainer.cs:297)
    OTContainer.Awake () (at Assets/Orthello/Standard Assets/OT/Graphics/Sprites/OTContainer.cs:254)

// put this in Awake method.