Crash before siege

Playing with 2.2a Roman campaign everytime macedonian siege one of my city there is a crash before finish loading to start the battle. There is a solution please?

We can't even begin to diagnose the problem without an error log. What does one of those from after the crash say? Ie can you upload it here?

It says "unspecified error". I can't upload the error log how can i do this? Can u explain me? Thanks

The error message basically tells me nothing; I need the whole log, as per this thread.

I don't know the reason but the last siege doesn't cause crash if i have another crash i post the log