Daz crushes when I use a remote iRay server.

Hello, this thing that happens to me is very strange. When I try to make my renders using an iRay server the first time almost always (90% of the times) Daz starts and after a few minutes it simply closes.
After reopening, I try again, same settings, everything, and it works 50% of the time. If it doesn't work, I have to keep trying until it works.
Is there a place where I can see the logs to try to discover the reason why crushes?

Thanks!