Hello.
I found a bug in
iceape_2.7.7-1~bpo60+1_i386.deb
in the postinst script:
...
case "$1" in
configure)
rm -f /usr/lib/iceape/.autoreg \ <---- !! backspash
rm -f /usr/lib/iceape/components/compreg.dat \
/usr/lib/iceape/components/xpti.dat
rm -rf /usr/lib/iceape/updates
;;
esac
...
Thanks