Product support for the legacy PHP 5.6, 7.0, and 7.1 environments is removed because no longer supported.
You can change your php version running on your site, in your cPanel account.
PHP 8.0 added
Update CloudLinux 7.9 cpanel/whm to v.94.0.4
Update WHMCS client area
Package has been updated to version 8.1.3