!IsPlayingOrAllowExecuteInEditMode()

I looked at the other copy of this and none of those answers helped because as far as I know I have no objects set to Hide and Don't Destroy. However, it started with a new update from another product so maybe...

The question I have is how in the hell do I find out where this is coming from? I can't figure that out. It is spewing at me in the editor non-stop and it's like my whole project suddenly broke and I have no idea why and I can't fix it without being able to find it and I can't find it.

HOW DO IF FIND IT?