Any idea how to solve this problem? I have tried the suggested solutions on the archive, that's Demean and Rescale but to no avail. 

I have attached the necessary files in the email below.

Many thanks,

Miracle

mri_glmfit command: mri_glmfit --y results/wholebrain/lh.thickness_DHI_Emotional_edit.fsgd.thickness.10B.mgh --fsgd thickness_DHI_Emotional_edit.fsgd dods --C thickness_edit.mtx --surf fsaverage lh --cortex --glmdir results/wholebrain/lh.thickness_DHI_Emotional_edit.fsgd.glmdir