Installing and upgrading help

Hi dude,

I had the same problem. In my case the problem was the theme ... I decided just commenting the lines of the custom menu;

$siteadmin = $topsettings->settings_tree($this->page->settingsnav);

risible_position_menus($siteadmin, $navigation, $hascustommenu, $custommenu, $home);

Sorry my english done by Google Translate.
I hope help you.