apt test problem

I have just installed at my ubuntu (Intrepid) the hobbit-plugins, however the apt test shows an incorrect data:

RED Last apt update: 269.1 day(s) ago

and I have carefuly executed apt update and apt dist-upgrade and system is updated.

I have also drop apt test and when it run again, the message was the same: 291 days.

I try to understand what server/ext/aptdiff do, but I can not understand where it see the last update (perl is not into my skills).

Can you help me to fix this issue?

Regards, Rodolfo Pilas