Documentation Tool

When I create a Documentation Tool project (in Moodle), the Submit button is not available on the page that appears after clicking "Create document." Your example shows Submit, Export text and Select all text along with the X for exiting. How do we get the submit button to appear? And, if we have the submit button, what is the function of that button?

1. When I click the Create Document button in some objects nothing happens. H5p objects created with an earlier version work well, but the word "undefined" appears at the bottom.
2. Wordpress 4.9.4
3. Desktop
4. Browser: Firefox
5. H5P 1.10.2

When a document is exported from the Documentation Tool, I'm seeing the text "undefined" appearing at the bottom of the page.

Although the content was created using the WP plugin, I've uploaded the H5P content to .org here as well, at this link:

https://h5p.org/node/222611