Fatal Error! issue, corrupted project?

After baking the GI in a scene that consists in a large desert with a lot of rocks, I've tested the scene and after stopping the play, unity crashed. Now I can't reopen the project, these two error messages keeps popping up:

1- "Fatal Error! Size overflow in allocator." (Screenshot Attached)

2 - I forgot the other one, it's more rare to appear, but said something about a cache issue.

My cache storage size is 100GB and I was using about 49,5GB of it when the error occured, already cleaned it and updated form Unity 5.3.0 to Unity to 5.3.1 to see if the problem was solved.

Any ideas? This is project that I'm working for more than 2 years and this is my last week on it, my last backup was from last week, have I lost my changes?

 

did you fix this?

 

WOW ! Here 20GB GI cache size. After GI calc all was OK but i made an error: i saved the scene and I closed editor. now I cannot reopen that scene without getting "Fatal Error! Size overflow in allocator.". Editor crashes and there is no log available.