Upfront doesn't save modifications

Hi, I am testing Upfront with Panino theme on http://xmodular.net/lecascatedisaturnia/

I made some test modifications and all was working fine, but now suddently I cannot save any modification. I mean: not any: no text modification, add, menu and so on.

It seems it saves, but when I test page or I reload Upfront there is not any modification saved.

By the way: I've updated themes, It seems that it does'nt save ufter this update.