Scroll down and link selector

Hello everyone,
I try to scrape a flickr page for a catalog of greek inscriptions. (https://www.flickr.com/photos/aibl_archive_of_louis_robert/albums/72157670615657597). I need to scroll down to make all photos appear, then click on each one to scrape the ID number and the comments. But webscrapper won't let me use a link selector after the scroll down element ( error : selected elements is not child of the given parent). I can't figure out how to use it and I would welcome any help. I just know nothing about programming (which is why I use webscraper).

{"_id":"photographs","startUrl":["https://www.flickr.com/photos/aibl_archive_of_louis_robert/albums/72157670615657597/page[1-45]"],"selectors":[{"id":"element-wrapper","type":"SelectorElementScroll","parentSelectors":["_root"],"selector":"a.overlay","multiple":true,"delay":2000},{"id":"photo-link","type":"SelectorLink","parentSelectors":["element-wrapper"],"selector":"parent","multiple":false,"delay":0}]}