"Assertion failed at line 742 in file templates/CachedArray.cc

nu_estimate_np_and_em: crashed while running volume_stats (termination status=256)

nu_correct: crashed while running nu_estimate_np_and_em (termination status=256)

ERROR: nu_correct

Darwin Martas-MacBook-Pro.local 18.0.0 Darwin Kernel Version 18.0.0: Wed Aug 22 20:13:40 PDT 2018; root:xnu-4903.201.2~1/RELEASE_X86_64 x86_64

recon-all -s plc0061 exited with ERRORS at Tue Nov 20 22:32:15 EST 2018"

I reviewed many threads on the same error message, but none of them were solved. I have the same version of FreeSurfer on two other MacBooks (with older versions of iOS) and both work fine. I ran fixup_mni_paths as it was suggested on multiple threads and nu_correct, as well and I got the following message: 

"nu_correct

nu_correct, version 1.12.0

Usage: nu_correct [-help] [options] in.mnc out.mnc"

Any thoughts on what the problem might be and how it could be fixed? Could this be an iOS compatibility issue? 

Gratefully, 
Marta