Source opening beug

Hello,

I have trouble to open my sources, I did then few weeks ago could open it, do t-test with them, everything was working. Yesterday I did some more and now I cannot open the new and the old one.. I do not understand why I have this error message, is it because I am lacking of memory ? In parallel I have no problem opening time frequency or raw data, also if Im running now source its working but then I cannot open it..
Have you any idea why ?

Thank you so much,

Marie

Matlab can't read the .mat file containing the cortex surface.
It has most likely be corrupted during a copy, or a crash.
You can simply restore it from a backup and replace it in the database.

If you don't have a backup, time to set up one.
And to fix your database, create a new subject, import again the anatomy folder, then from your file explorer, replacing the corrupted file. You would lose all your scouts, if any.