Some users have reported strange behavior from their copies of iManga. Specifically crashes, things saying they've got new chapters, and a few other small quirks. Don't panic, this is totally normal! We are in the middle of integrating some new manga hosting websites, and phasing out titles and hosts that have removed chapters for different series.
As of this moment, we are waiting on Apple to review and approve our latest update to the app, which should make all (or at least most) of these issues go away. Please be patient!