Saves not saving

When I hit save, the popup comes up with a “1” and the console registers the “1”, but If I go to another post and hit the save button, it still says “1”. If I go to the saved-for-later (on /library/my-bookmarks) page, I cannot see any posts saved.

Basically it appears not to be saving.

Please take a look: kenboa.wpengine.org

The bookmarks page is: https://kenboa.wpengine.com/library/my-bookmarks/

Thank you!