At some point over the last few hours the “add reply” and “add topic” buttons have become unresponsive.

I made some changes to the theme today (via a child theme), and updated some of the simple press plugins… but the problem persists with the child theme and all plugins (simple press and wordpress) deactivated.

Any idea?

Here’s a link to a test-version of my site:

http://doingenglish.staging.wpengine.com/plus/community/

(it looks like crap because all plugins are deactivated)

There’s nothing in the error logs for either simple press, or for my host (WPengine).