Installation and server related problems

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Hi, I've embedded a "Course presentation" object to our LMS (DOCEBO) and I'm having the message "Content Unavailable" displayed (attached file) and I can't see the content. I can only see it whenever I'm logged at H5P at the same time. However, this log in is not necessary with the other objects I've created. I have other 3 similar objects and I'm having the same problem with all of them. The content is basically slides of images (all under 500KB) and some text. Help please. Thank you.

Hi, I've embedded a "Course presentation" object to our LMS (DOCEBO) and I'm having the message "Content Unavailable" displayed (attached file) and I can't see the content. I can only see it whenever I'm logged at H5P at the same time. However, this log in is not necessary with the other objects I've created. I have other 3 similar objects and I'm having the same problem with all of them. The content is basically slides of images (all under 500KB) and some text. Help please.

I tried to install the plugin as described in https://h5p.org/documentation/setup/wordpress  and I am getting:

"Installation failed: Could not copy file. h5p/h5p-editor-php-library/ckeditor/lang/no.js"

I am able to install any other plug-in but not h5p.

 any idea?