We’re running it and it works fine. I will certainly double check tomorrow morning at my workstation.
Your error message is complaining about a missing file in h5p-php-library. How are you running the H5P Plugin? Straight from GitHub? If yes, then h5p-php-library is a git sub module. You need to update separately.
If no, if you downloaded their zip file from WordPress.org, then open a ticket on their GitHub: https://github.com/h5p/h5p-wordpress-plugin/issues - I just downloaded and I see the file. I doubt that’s the problem?
