Steps to reproduce :

- import the Top-Down Dungeons https://www.assetstore.unity3d.com/en/#!/content/7853 from the Asset Store
- open the "Scene1"
- change the Lightmapping from Legacy to Iterative (case 624090)
- enter playmode and notice the screen is black and the errors in the console

Destroy may not be called from edit mode! Use DestroyImmediate instead.
Also think twice if you really want to destroy something in edit mode. Since this will destroy objects permanently.
UnityEngine.Object:Destroy(Object)
AntialiasingAsPostEffect:OnDisable() (at Assets/Top-Down Dungeons/Standard Assets/Image Effects (Pro Only)/AntialiasingAsPostEffect.js:102)