Fill in the Blanks

Found Advanced Fill In the Blanks which fits my needs. Apparently it's now Complex Fill in the Blanks, not supported by Core. (Why not? it's great!)

Made a nice little content bit for my demo site, but on uploading to Content Bank in Moodle, I'm getting the error:
Missing main library H5P.AdvancedBlanks 1.2

Checked to see if this was on github but no joy.

Any clues, suggestions, or pointers please?

I'm testing theaccessibility of the Advanced Fill in the Blank learning object, and have a few suggestions to improve accessibility. As is it's somewhat accessible, but would be largely unusable with a screen reader.

For "fill in the blank" question, if I want to ask a question like:

45 * 2 = <blank>

Then I need to type 45 * 2 = *90*

However, the multiplication sign * has a different meaning here so it doesn't work. Is there a way to get around it (like the escape character)?

Also, I have to use the asterisk as the multiplication sign, and cannot replace it with x or X.

Thank you!