Engine crashes when opening levels from content browser

Hi,
Every time I try to open a level from the content browser the engine crash, with exception of to maps.
One is almost empty and the other is almost a copy of the one that I can open. The latter is also a divided in level streaming and I can open all levels besides the persistent one, which is literally the copy of the one I can open.

Here is my log: link text

I looked into it but I cannot see anything useful, hopefully, some of you can save me.

Thanks