Installation and server related problems

I am trying to add H5p interactive content to my moodle site as follows.

• Go to a course I created.
• Choose "Add an activity or resource".
• Choose "H5P Interactive Content". 
• From the "H5Phub: Select content type", I choose any of the available content (e.g. Interactive video) by clicking "Get".
• Click "Install".

The "H5Phub: Select content type" section disappears and I get the following error in the console:

TypeError: Cannot read properties of undefined (reading 'libraries')

I am succesfully using the WordPress H5P plugin on a domain that many students are using. I have just set up a new WordPress site in a subdomain of the same shared hosting server and installed the H5P plugin - my plan being to separate the training that uses H5P from the main (more corporate) website.

My problem is that when I try to Add content, all I get is a "Before you start' message at the top of an otherwise blank screen.

Hi,

Is it possible to run H5P fully locally without internet connection (after setting it up)?

Regards