interactive book

Ahoj, pracuj na desktopové verzi interaktivní knihy. Potřebuji do knihy vložit externí html soubor, který by se měl zobrazit přímo na stránce knihy. Kniha i externí soubor budou na počítači bez přístupu k internetu ve stejné složce. Lze nastavit? Jak? Stále mám problém...

When a user tries to view an H5P for our course, they aren't able to advance beyond page 2, when they arrive there they cant go back to the first page either. 
I checked the logs and found the following error message:

The table editor has been updated in the past year i believe, and i am struggling to get the tables i create to display as full width. By default, they just display to the width of the length of content you put in there. I just want it to be full width but i dont know the dimensions to put into the editor. Its a bit confusing. Is there an easier way? When i drag the borders around, it looks messy, and i cant get it to be full width that way anyway. 

Here is a screenshot from my course.