gnus signals error

in "21.0 \"Benadir\" XEmacs Lucid" with gnus-version=5.6.24 (xemacs 1.22) I get: Signaling: (invalid-function (macro . #<compiled-function (&optional n) "...(14)" [delete-region (progn (beginning-of-line) (point)) progn forward-line n 1 ((point))] 5>)) gnus-delete-line() nnmail-article-group(nnfolder-active-number) nnmail-check-duplication(&quot;&lt;199807231846.OAA03537(a)joule.ai.mit.edu&gt;&quot; nnfolder-save-mail nnfolder-active-number) nnmail-process-unix-mail-format(nnfolder-save-mail nnfolder-active-number) nnmail-split-incoming("~/.gnus-crash-box" nnfolder-save-mail nil nil nnfolder-active-number) nnmail-get-new-mail(nnfolder #<compiled-function nil "...(57)" [nnfolder-buffer-alist bufs buffer get-buffer buffer-name delq nnfolder-save-buffer kill-buffer nil] 4> "~/GNUSMail" nil) nnfolder-request-scan(nil "") gnus-request-scan(nil (nnfolder "")) gnus-read-active-file(nil t) gnus-setup-news(nil nil t) byte-code("..." [dont-connect did-connect gnus-group-quit gnus-run-hooks gnus-startup-hook gnus-make-newsrc-file gnus-startup-file gnus-current-startup-file gnus-slave gnus-use-dribble-file gnus-dribble-read-file gnus-use-grouplens bbb-login add-hook gnus-summary-mode-hook gnus-grouplens-mode gnus-setup-news nil level 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] 4) gnus-1(nil t nil) gnus(nil t nil) #<compiled-function (arg) "...(6)" [gnus arg t nil] 4 nil "P">(nil) call-interactively(#<compiled-function (arg) "...(6)" [gnus arg t nil] 4 nil "P">)