Hi Freesurferers

I am running mri_glmfit on a group data using --no-prune flag. i 'm getting the below error. 
I appreciate if you could let me know what the issue is.

Loading y from /autofs/space/oprah_001/users/zn025/looming_3T/group_levels/patients_20/loom.lh/aw/ces.nii.gz
   ... done reading.
Saving design matrix to main2.wls/Xg.dat
Computing normalized matrix
Normalized matrix condition is 1
Matrix condition is 1
Found 149955 points in label.
Found 149955 voxels in mask
Saving mask to main2.wls/mask.nii.gz
Reshaping mriglm->mask...
search space = 74612.583051
ERROR: MRInormWeights: value less than or eq to 0.
  c=336, r=0, s=0, v=0


Thanks
Mona

Zahra (Mona) Nasiriavanaki

Postdoctoral Research Fellow

Martinos Center for Biomedical Imaging

Massachusetts General Hospital

149 13th Street, 149-2615

Charlestown, MA, USA, 02129