Shortcodes not working anymore?

Hello there,

I am having issues with your spoiler shortcode. If you go here: http://www.slarc.com/firmprofile/ you’ll notice there are a lot of titles halfway down the page with the plus sign next to them. Those are the su-spoiler titles. If clicked they should reveal the text that they contain. I don’t know why it’s not working? When I originally wrote that page and utilized Shortcodes Ultimate it was working flawlessly. That was a few weeks ago. I just noticed today it’s not responding when the title is clicked.

Any ideas of how this can be fixed?

Thanks,
Lorne

https://wordpress.org/plugins/shortcodes-ultimate/