Installation and server related problems

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

Hi all,

I'm running a new AWS EC2 Bitnami Moodle server. The server is running perfectly until I attempt to create a new H5P activity which crashes the server. Once I get the server back online, I am often able to create the activity without the server crashing however often the process of editing the H5P activity will crash the server again.

I'm only running a T2.Micro server, perhaps scaling to a T2.Small will help. It's a 50GB partition with 38GB free.

Hello everyone, I am new to H5P and Moodle and therefore might not be able to communicate my problem properly. Unfortunately, I am not able to upload any content using the H5P activity (black Logo) option. There are a few examples that I can use but the ones I'm trying to upload are Image Juxtaposition and Find the words. 

What I do: add new activity → H5P content → upload an H5P content (I previously downloaded the examples from this page) → 'Validating H5P package failed, Missing main library @library