Hi Eugenio,
Sorry for the trouble. For sure, interpreting CIF files can be tricky! But, I can read that CIF file with XAS Viewer, larch version 0.9.67. It doesn't fully read all the data about the publication, and it can generate a plausible Feff.inp file.
Can you verify that you have a fairly recent version?
I see that there are Unicode characters in the file, but these seem to me to be UTF-8 compatible. If you are still seeing trouble, this might be part of the problem. You might have better luck if you remove these (specifically the line with "_chemical_name_structure_type", which I think you can just remove). If that *does* help, can you also report what your default Unicode encoding is: from either Python or the Larch buffer in XAS Viewer, do
import sys
print(sys.getdefaultencoding())
Unfortunately, the current code is not super helpful in reporting why it couldn't read the CIF file - this should be improved!