Hi,
The plugin updated automatically, so that’s probably the change. However – and I’m not sure how it happened – the site seems to have the Pro version, but it’s using a non-Pro javascript file. Is there any caching software running on the site?
I’d like to help you fix the problem. Could you please use the contact form to send me an email with a login to the site? I want to look at the plugin updater to see if it’s a problem there.