Error Message
You must upgrade to Litespeed “5.2.1 build 2 or later”, in order to upgrade to the next version of cPanel & WHM.
Explanation
The error appears because Litespeed below 5.2.1 doesn’t have SSL compatibility with Cpanel 11.68. Although, this goes further, if you uninstall the plugin, and upcp will still fail to update the Cpanel/WHM. A workaround for this, is to install and uninstall the plugin through Litespeed auto installer. Here is how to do that:
Download Litespeed Auto Installer for Cpanel
# wget https://www.litespeedtech.com/packages/cpanel/lsws_whm_autoinstaller.sh
# chmod a+x lsws_whm_autoinstaller.sh
Install Litespeed for Cpanel/WHM using Auto Installer
# ./lsws_whm_autoinstaller.sh TRIAL 1 8080 username testpass1234 [email protected] 1 0
Uninstall Litespeed
# /usr/local/lsws/admin/misc/uninstall.sh
Uninstall Litespeed WHM Plugin
# /usr/local/cpanel/whostmgr/docroot/cgi/lsws/lsws_whm_plugin_uninstall.sh
Run upcp:
# /scripts/upcp --force