This did not happen before but now I can't take images with YafaRay V1.

It used to outperform the "stock" engine but now it does not work anymore, the stock works fine, but slow.
Is there some file size limit that makes YafaRay stop working?
I was creating level 1 and added some furniture and lights then tried to do a new image and it stopped working.

My file is 187 MB normal, and ~107 compressed.