Bugs in content types

When creating an interactive book (1.9.5) in Moodle 4.4, the following error appears:
Exception - Call to a member function get_content() on false
line 258 of /mod/hvp/classes/file_storage.php: Error thrown
line 2538 of /mod/hvp/library/h5p.classes.php: call to mod_hvp\file_storage->cacheAssets()
line 194 of /mod/hvp/classes/view_assets.php: call to H5PCore->getDependenciesFiles()
line 90 of /mod/hvp/classes/view_assets.php: call to mod_hvp\view_assets->getdependencyfiles()

I’m having some trouble with the resume feature in the H5P Interactive Book when integrated into Moodle. When students navigate away from the interactive book, their previous attempts seem to disappear rather than resume from where they left off.

Is there a setting I might be missing, or is this a known issue with the integration? Any guidance on how to retain progress after students navigate out would be greatly appreciated.

Hello,

I found out that when users fill all the blanks correctly they don't have chance to start it again. There is no button "try again" even if it's checked in the admin. When I make a mistake once I can see the button "try again". Could you tell me is there any solutioun to add "try again" button even if the question is 100% correct?

I use fill in the blanks (not question set).

I'll appreciate your help :)