It is workindg with free ebook without DRM.But it is not working with ascm file previously bought. Lat week I have made correction for my ID because it was associate with and old email that is no more existing, also I had to change my 2 PC for Windows10 because my first one has crashed. So I have a new PC, and I had to reinstall everything. Since then I always have E_ADEPT_NO_TOKEN.
I did reauthorize my 2 PC with my corrected ID.
Then the error is a problem in the file itself. Try it with a other internet browser. Its also not work ask your reseller for a new file.