I’ve been waiting for help from WordPress proper, to no avail. JetPack 2.2.3 gives me a PHP error code: Warning: Invalid argument supplied for foreach() in /home/kirinv/public_html/kirindesigngr.com/wp-content/plugins/jetpack/jetpack.php on line 4534
As mentioned, the JetPack team has not given any help for the issue, but to say “Post your site URL” – at which point I’d restored my site so it made no difference. Any thoughts?
Actually this seems to be just a warning message and not an error (difference is that the error will break your website, the warning will just output a warning message). You can suppress warnings by deactivating the debug mode: http://codex.wordpress.org/Editing_wp-config.php#Debug