Moodle plugin - Cannot edit or create Question sets or Columns - throws errors

Environment:  Moodle 3.9, running latest H5P plugin (2020020500) and latest libraries (refreshed nightly, via CRON)

Summary: At some point last week, certain H5P activity types such as Question Set (1.17.2) and Column Column (1.12.0) stopped being editable and started throwing errors (details lower).   These activities have dependencies on other libraries.

You can no longer create new activities of these same types.  

Problems to install Column

Brothers : Firefox and Chromium

H5P : 1.20.2

LMS : Moodle 3.8.2+ (Build: 20200408)

Theme : Moove

I have already installed several H5P modules but I cannot install the column module.

The installation starts then the page refreshes but nothing appears and impossible to save, only the Cancel button is clickable.

Thank you,