Debugger entered--Lisp error: (error "Can't rfc2047-encode `Przej¶ci-Aówka'")-B
  signal(error ("Can't rfc2047-encode `Przej¶ci-Aówka'"))-B
  cerror("Can't rfc2047-encode `%s'" "Przej¶ci-Aówka")-B
  apply(cerror "Can't rfc2047-encode `%s'" "Przej¶ci-Aówka")-B
  error("Can't rfc2047-encode `%s'" "Przej¶ci-Aówka")-B
  rfc2047-encode(1 13)
  rfc2047-encode-region(1 42)
  nnrss-mime-encode-string("Przej¶ci-Aówka ST ---> VGA - z d-B¼wiêkiem!!!")
  nnrss-check-group("atari.new.allegro.pl" "")
  nnrss-request-group("atari.new.allegro.pl" "" nil)
  gnus-activate-group("nnrss:atari.new.allegro.pl" scan)
  gnus-get-unread-articles(nil)
  gnus-setup-news(nil nil nil)
  byte-code("..." [gnus-slave gnus-current-startup-file gnus-startup-file did-connect level dont-connect gnus-group-quit gnus-run-hooks gnus-startup-hook gnus-make-newsrc-file gnus-dribble-read-file gnus-request-create-group "queue" (nndraft "") "drafts" (nndraft "") gnus-setup-news nil gnus-setup-news-hook gnus-start-draft-setup gnus-group-list-groups gnus-group-first-unread-group gnus-configure-windows group gnus-group-set-mode-line gnus-started-hook gnus-use-dribble-file gnus-agent] 4)
  gnus-1(nil nil nil)
  gnus(nil)
  call-interactively(gnus)
  command-execute(gnus t)
  execute-extended-command(nil)
  call-interactively(execute-extended-command)