Matlab crash while running mex file

I am using a repository found on github to be used with Matlab for ROS, and I'm having trouble with running the mex files. I have compiled them (I believe successfully), but matlab keeps crashing when reaching the corresponding functions in the script.

I've gotten two different crash reports so far. At first, I thought it might be the libstdc++.so.6 symbolic link, so I changed it to point to the libstdc++ of the system. The peculiar thing in the crash reports is that they both show the graphics cards were not recognized. Could it be that? I tried running matlab -softwareopengl but it crashed nonetheless.

I have attached the crash reports as crash1 and crash2. I've also attached one c++ file (getVoxelGrid), which, among others, is called by the script.

Thank you.

[Tohru Kikawada]

Which repository are you referencing? It may be hard to figure something out without the reproducible code.