my e-reader doesn't seem to work with Mojave

Hi,

I downloaded Mojave on my Macbook a couple of days ago, and since then I have issues with ADE. When I download a book I can read it with ADE on my computer, I can transfer it on my Kobo reader and everything seems fine, but when I want to open it on my Kobo, I get a message saying that the book is protected by DRM, that my Kobo is no more authorized (which is wrong, it is authorized) and that I should try again to download it with  ADE. I tried that several times. I canceled the authorization and authorized it again with my Adobe ID. I downloaded ADE latest version, but nothing works. Any idea?

Thanks,

Karine