H5P Mods blocks H5P plugin

When I installed H5P Mods plugin (and activate) for my custom css, H5P plugin it will not work, ie it throws out a message "Failed to load data." (in All H5P Content), and "Error, unable to load libraries." in Add New. In Inspect I dont have any error.

WordPres 5.3
H5P plugin 1.15.0