Hi freesurfers!

I am new to freesurfer and have encountered a problem with surface generation.  I am working with a non-human primate anatomical volume. I finished segmenting the white matter and am on this next step. I think, however, that the step where the surface is generated from wm.mgz is crashing (I started the process last night and it has not finished and does not appear to be moving forward).  Does anybody know why this might be happening? How long should I expect this step to take?  I have attached below some of the messages I'm receiving.

Thanks in advance!

Jane