Hi James!
Thanks for responding about this. I went ahead and deactivated almost all plugins (only keeping the essentials active, about six) but still no success getting rid of this Notice at the top of my page. I also tried rolling back versions of my website’s theme, version of WordPress and plugins, but almost broke my website this way (had a very scary Fatal Error moment just now, but it seems I was able to address this).
Let me know if you have any other recommendations, I am pretty desperate to get this fixed.
