Kobo Touch refused to sync complaining there is not enough space on device. I used calibre to get the book and the reader forgot my bookmarks. Now when I plug it into calibre it informs me the database is corrupted. I remember reading that I ought to sign out of kobo account but, I'm not sure what's that going to do my ADE authorization. What should I do?
(And what did I do to corrupt database in first place?)