Steven Zahm@ Alan
These are not errors or warnings. They are benign notices which can safely be ignored. If you are seeing them on a live site then the web host has configured the site to display notices (not typical). Here’s a link to a simple change you can make to suppress these notices:
https://aristath.github.io/blog/wp-hide-php-errors
On a live site it is a best practice to have your site configured not to display these notices.
Hope that helps!
ps. The reason for these notioces is that Connections has introduced new configuration features recently, the Fieldset Configuration options. When all of the fieldset options have been added (they’re being phased in), all templates will receive an update which will eliminate these notices from ever showing up.