Firstly, and unlikely to work, fapman has its own "apt-get" script called "fapt-get". See if it too stumbles at the same point.

I have never encountered this issue but I would:

1) make a backup of /var/lib/dpkg/status.
2) delete /var/lib/dpkg/status and try again to see what happens.
3) failing that, I would edit /var/lib/dpkg/status deleting the offending fapman entry and retry.
4) if that works, I would reinstall fapman, perhaps trying "apt-get install --reinstall fapman" to reinstate the dpkg database entry

You will need to be root to do these things......