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Running H5P Version 1.15.4, WordPress 6.0, PHP 8.04.2.0.1, Safari 15.4

I can see the library but am unable to add any new content. I click on "Add New" and I get "Loading, please wait..." but nothing happens. The hub doesn't load. I also can't edit the content already created. 

Everything else on the site works just fine but I can't seem to add any new content. Any help would be greatly appreciated!

Dear Forum,

for protecting my content i am using the plugin "wp content copy protection premium" which works fine, exept with the h5P elements: If you double click on such element whole page and images are open for storing and copying.

Asking the plugin provider for help he recommended to add some code at the end of the h5p.css. See his answer below

"H5P plugin uses iframes method to put its content inside the WordPress or inside its own iframes.

Hello!!

I'm using H5P contents under the WPLMS theme on WordPress. Hereafter developing and testing things with the theme and all the available features I decided to create a platform where the content created on H5P will be used as the activities that'll determine the evaluation of the user based on the performance respectively. So I think you may be aware of the feature where WPLMS provides the opportunity to create quizzes solely based on H5P content named "H5P quiz" where after the submission of the quiz the activity is evaluated.