DrawIt Loading Issue

I am trying to get DrawIt to work on the most recent WP.

Using this post as a guide “https://www.ads-software.com/support/topic/breaking-change-new-embed-uri/#post-13442881”

I updated draw.io to diagrams.net in both PHP and JS, but I could not complete step two.

@patsam, can you help with your original post?

The page I need help with: [log in to see the link]