Beaver Themer causing a critical error on a page

One particular page is showing a critical error when loading: https://icmda.net/resources/webinars/
The log shows that Beaver Themer is the culprit.
When I deactivate the plugin the page loads ok.
I think it might be something to do with a post carousel that is on that page - it has custom styling.
We have also just migrated our site to a new host.

Any idea how to get passed the critical error? We need beaver themer to be running on the site.

Issue was unclosed bracket in css