Unable to read EPUB DRM books on Kobo Forma

Hi, I'm having issues opening EPUB DRM files on my Kobo Forma. An error message appears saying I do not have authority to open these books on my Kobo. I have tried all the tips on the forum such as deauthorising and re authorising my device and laptop etc and deleting/redownloading the books and trying different books but nothing seems to work. I have been able to download and read regular PDF books off the libby app but not the EPUB DRM files for some reason. they open on the adobe digital editions app but not on the ereader.

Any tips/help you could offer would be great.