The problem is not related with OpenMEEG, but due to the definition of the various coordinate systems in your MRI.
The error at line 158 in cs_compute suggests that the variables AC, PC or IH are empty, because of their conversion to the SCS coordinate system failed, most likely due to missing fiducials.
I would suggest you import again the anatomy from the beginning, making sure your defined correctly all the fiducial points (or compute the MNI normalization and use the default fiducial locations).
If this doesn't solve your issue, please right-click on the MRI > File > View file contents, and copy paste here the lines that define the SCS and NCS structures.