When we updated our site today the update routine said that wordpress.org was not responding. This involved an update to All in one SEO and to the Atahaulpa theme (our active theme was a child theme of Atahaulpa). As a result we lost our menus and headers. As you can see, until we resolve the problem we have switched to another theme. The losses included our Google AdSense Ads.
As we look into this, you may wish to hold off on updating or backup your site php code first.