I never saw this error in the 20+ years I'm using debian based
distros. Some people have fixed it with an reinstall of
apt-listchanges
I'm unsure how you'd do that without apt, unless I go delving into dpkg.. and suck in a package manually... So far as I can tell I don't have any other symptoms going on, I think, the fs is in fact clean. But its so blinkin' hot here at the moment, I haven't looked sideways at it.
Spec
--- SuperBBS v1.17-3 (Eval)
* Origin: < Scrawled in blood at The Lower Planes > (21:3/101)