Logo won't save on frontend

Hello,
I have an odd issue with logo image.
I’ve installed Enfold 3.0 on WP 4.1, then imported Small Business – Flat Demo.
I’m trying to upload my logo in control panel, but the default one is still on frontend.
I’ve refreshed page many times, tried to choose another image, but nothing changes.
I also checked the source code, but it I can’t figure out what’s happening.

This is the path of my uploaded logo http://bbsadenco.com/wp-content/uploads/2015/02/logo1.png (white on white)

Please help me.
Thank you in advance.
Regards,
Davide