You really have to give a bit more detail than that so that someone can help 
You should start by tracing back to a workable version of your project, and identify what new change(s) you are making that cause the crash.
I vaguely remember having a similar problem once due to some trouble with creating default subobjects…
Anyway, maybe someone understands these error messages better and can be more helpful, but it’d be better if you provided more details or did some troubleshooting yourself first to identify some probably suspects?