@n900 lover
you could check out this pretty old thread: http://talk.maemo.org/showthread.php?t=18078
it just says that what we have been seeing is just a "warning" and not really an "error" and you can ignore it if you want. i'm just ignoring it, too lazy to apply the suggested solution.

just to clarify, i've been having that warning long before CSSU 16.

EDIT:
@CSSU Team
just want to report that not everyone's having problems with the CSSU updates.
only troubles i had were the ones with fastsms and CSSU features config. both now ok.