interactive book

We migrated from Wordpress.com to Wordpress.org, the owner of the content downloaded the content via moodle I belive using the reuse function. He now has all of the content sitting in a folder.

I have now setup a wordpress.org using AWS Lighstail for hosting. Everything is running brilliantly and I have downloaded the sample h5p book and uploaded with no issues. However, when I try and upload one of the owners files it says it uploads and then produces an error 500 (all attached).

In moodle 4.2 interactive book flickering while opening if where are more content from standart window size, can be problem with JS-resizer.

This problem apears in chrome, edge, brave and some times in firefox

I append file with example. It is translated to german.

I'm using the interactive book with essay-type questions and other h5p activities and I've noticed that the answers my students have given to the essay-type questions don't appear in the attempts report. I only see the duration, score, conclusion and result of the attempts, but what they wrote is not available.
I've found that when I use the Essay questions individually (outside the interactive book) the attempts report shows the answers.
Is there a specific setting in the interactive book to make the answers available or does the book not have this functionality?