First, Please try installing https://wordpress.org/plugins/enable-jquery-migrate-helper/ to see if that fixes the issue.
For more information on what this is all about, see https://wptavern.com/major-jquery-changes-on-the-way-for-wordpress-5-5-and-beyond
If the plugin helps, please contact the developers of the plugins or themes noted in its admin messages.
If not, because you’re using a commercial theme/plugin, please use their official support channel. We feel they are best equipped to support their products.
Commercial products are not supported in these forums.
Thank you for your help, the plugin worked like a charm. I’ll go through the developers of the theme etc and make sure they’re aware.
Again, much appreciated thank you.