Ataualpa update 3.7.12 to 3.7.18 and... no header

Hello

I updated recently Atahualpa 3.7.12 to 3.7.18 and, in the same time, my wordpress 4.0 was updated to 4.0.1. Since, the header is not showing. I've tried to import my setting in Atahualpa and to update header and footer setting with save change but, no results.

Can you help me ?


Wordpress 4.0.1
Atahualpa 3.1.18

URL : http://mathieu-arbez-hermoso.net/