privoxy fails to resolve hostnames

hey,

i used privoxy 3.0.28 with debian buster (10.11) w/o any problems, but 
after upgrading to debian bullseye (11.2), privoxy 3.0.32 suddenly 
complains about not being able to resolve hostnames (see log at the end). 
the configuration for privoxy has not changed, and neither have 
/etc/resolv.conf or /etc/hosts.

on the same host, name resolution works just fine:
  > host privoxy.org
  privoxy.org has address 46.165.244.215
  privoxy.org mail is handled by 50 mail.privoxy.org.

i'd really appreciate it, if someone could enlighten me, where the problem 
is

greetings...


privoxy logfile:
2022-02-11 20:53:58.621 9y5ostdB4Ocu Info: Privoxy version 3.0.32
2022-02-11 20:53:58.621 9y5ostdB4Ocu Info: Program name: /usr/sbin/privoxy
2022-02-11 20:53:58.621 9y5ostdB4Ocu Info: Loading filter file: 
/etc/privoxy/default.filter
2022-02-11 20:53:58.632 9y5ostdB4Ocu Info: Loading filter file: 
/etc/privoxy/user.filter
2022-02-11 20:53:58.633 9y5ostdB4Ocu Info: Loading actions file: 
/etc/privoxy/match-all.action
2022-02-11 20:53:58.633 9y5ostdB4Ocu Info: Loading actions file: 
/etc/privoxy/default.action
2022-02-11 20:53:58.637 9y5ostdB4Ocu Info: Loading actions file: 
/etc/privoxy/user.action
2022-02-11 20:53:58.641 9y5ostdB4Ocu Info: Listening on port 8118 on IP 
address 127.0.0.1
2022-02-11 20:53:58.641 9y5ostdB4Ocu Info: Listening on port 8118 on IP 
address 10.1.1.10
2022-02-11 21:20:56.513 7f808b3dc700 Request: privoxy.org:443/
2022-02-11 21:20:56.514 7f808b3dc700 Info: Can not resolve privoxy.org: 
Temporary failure in name resolution
2022-02-11 21:20:56.516 7f808b3dc700 Crunch: DNS failure: privoxy.org:443