When attempting to list NRK's categories in Plex, it finds none and outputs "Ingen funnet". By the looks of it, this is caused by a slight change to the html, and can be fixed by changing the class selector in Contents/Code/data.py#L54 from 'hidden-phone' to 'drilldown-link'.
(Migrating the project to using https://tvapi.nrk.no could be considered for increased robustness.)