Normally upcp is used as a silver bullet for many cPanel-related problems, but what happens when upcp itself has a problem? If you're seeing an error like the one below when running this script, then continue reading!
root@server [~]# /scripts/upcp /scripts/upcp syntax OK Running Futex Check/Fix......Done Undefined subroutine &Cpanel::Update::automatic_updates_enabled called at /scripts/upcp line 273.
The fix here is to grab a static update script from cPanel's mirror which will re-link and fix any critical cPanel Perl modules that are broken or missing. Bash one-liner to follow:
wget -O /root/updatenow.static http://httpupdate.cpanel.net/cpanelsync/RELEASE/scripts/updatenow.static \ && perl /root/updatenow.static --manual
Once complete, run
/scripts/upcp --force again.