Opening and Closing Issue

Hello,

I am having an issue with my accordions. I looked at a similar post with the same issue earlier which suggested I update my jQuery. But that didn’t help when I used the jQuery Updater plugin. I still get this error below.

https://i.gyazo.com/4d70f3e8763423a55788fd7de6001245.png

I do have a cache plugin and I always emptied the cache after changes but still cannot open and close the accordions. What can I do?

https://www.ads-software.com/plugins/accordion-shortcode-and-widget/