Add new H5P activity results http 500 error in Moodle v3.9 - Class core_h5p\\file_storage contains 1 abstract method...

Using Moodle v3.9, mod_h5pactivity version 2020061500, PHP v7.4.33.
When I add new H5P activity into a course, it results http 500 error in Moodle v3.9.

After checking webserver logs, I see the following error:
PHP Fatal error:  Class core_h5p\\file_storage contains 1 abstract method and must therefore be declared abstract or implement the remaining methods (H5PFileStorage::deleteLibrary) in /srv/www/moodle/htdocs/h5p/classes/file_storage.php on line 37, referer: https://mymoodle/course/view.php?id=123

Is this a bug?
Could be possible to fix this?