courseware become uneditable

I used a lot of HP5 courseware content types on my work.
Some of the mine courseware has became uneditable for some reason. I am able to load and view it as normal, but as soon as I tried to edit it. 
The edit area becomes uneditable with interface missing as well... My first reaction was that the file became corrupted for some reason. But strange enough, I am able to view it without problem. 

Please see the image attachments and H5P file. 

Thanks