muffin builder - unable to add more elements "add item"

hello I am updating a page with quite a lot of ‘our team’ elements on a page of betheme, without any warnings or notifications, i update a page with new elements, but on reviewing the page, they have dissapeared, and are no longer showing on the back end of the muffin builder - any ideas?

My opinion get in touch with your purchase item author @muffingroup they can help you in this issue.
or contact from here