errors in muttrc

This was generated by a script called fleacollar.sh
and the mutt version is 2.22.12

cannot figure lines 18 and 28 errors why those are happening.

set editor=nano
set text_flowed=yes
set send_charset=us-ascii:utf-8
set pager = 'builtin'
set pager_stop = 'yes'
set sort=threads
set beep_new=yes
set print=yes
set imap_check_subscribed
set sort_alias=alias
set reverse_alias=yes
set alias_file=~/.mutt/aliases
source ~/.mutt/aliases
set history_file=~/.mutt/history
set history=1024
set mailcap_path=~/.mutt/mailcap
set header_cache=~/.mutt/cache/headers
set message_cachedir=~/.mutt/cache/bodies
set certificate_file=~/.mutt/certificates
set markers=no
unset mark_old
auto_view text/html
alternative_order text/plain text/enriched text/html
message-hook '!(~g|~G) ~b"^ 5 dash charactersBEGIN\ PGP\ (SIGNED\ )?MESSAGE"' "exec check-traditional-pgp"
source ~/.mutt/gpg.rc
source ~/.mutt/macros
macro generic,index <F1> '<sync-mailbox><enter-command>source ~/.mutt/[email protected]<enter><change-folder>!<enter>'
source ~/.mutt/[email protected]