Import of activities and Errors

Hi there, I was wondering how to get a lot of my Moodle quiz questions in Opigno... Found a solution to automate the bulkcreation of h5ps. I'm now trying to import the h5p's into Opigno and have some questions about the opi files. What happens if an opi-file holds an activity-id that is already in use in Opigno? Say activity-id 10 is in Opigno and I try to import an opi-file which also has an activity-id set to 10? What happens is an opi-file does not have an activity-id at all? Does Opigno add the activity-id to the new imported h5p by itself? Is there more documentation about the importing function somewhere? Update on the above issues: seems like Opigno gives a new id to the imported activity, that's okay. Opigno expects the h5p in the imported opi-file to be named as interactive-content-[id].h5p. This is a little bit strange as far as I can see... It assumes that all imported h5ps were formerly exported from Opigno. Why not read the opi file for the existence of a proper h5p file and a json file? You can then name the h5ps like you want, f.i. with a coding name that says something about the content. After importing an exported activity from Opigno I get the following error: The website encountered an unexpected error. Please try again later. Error: Call to a member function getFileUri() on boolean in Drupal\opigno_module\Form\ImportActivityForm->submitForm() (line 89 of profiles/opigno_lms/modules/opigno/opigno_module/src/Form/ImportActivityForm.php). Has this something to do with the fact that I have my Opigno in a subdirectory of my website??? Seems that the real path of getFileUri function isn't retrieved so the import fails. Help very much appreciated! Thnx in advance, viragom