If you are using Build.PL define the {requires}{perl} = VERSION field. If you are using MakeMaker (Makefile.PL) you should upgrade ExtUtils::MakeMaker to 6.48 and use MIN_PERL_VERSION parameter. Perl::MinimumVersion can help you determine which version of Perl your module needs.

Add =head1 LICENSE and/or the proper text of the well-known license to the main module in your code.

Add 'use warnings' (or its equivalents) to all modules, or convince us that your favorite module is well-known enough and people can easily see the modules warn when something bad happens.

Error: cPanel::PublicAPI, cPanel::PublicAPI::Utils, cPanel::PublicAPI::WHM, cPanel::PublicAPI::WHM::API, cPanel::PublicAPI::WHM::CachedVersion, cPanel::PublicAPI::WHM::DNS, cPanel::PublicAPI::WHM::JSONAPI, cPanel::PublicAPI::WHM::Legacy, cPanel::PublicAPI::WHM::XMLAPI

Ask the owner of the distribution (the one who released it first, or the one who is designated in x_authority) to give you a (co-)maintainer's permission.

Error:

• cPanel::PublicAPI
• cPanel::PublicAPI::API
• cPanel::PublicAPI::DNS
• cPanel::PublicAPI::JSONAPI
• cPanel::PublicAPI::Legacy
• cPanel::PublicAPI::Utils
• cPanel::PublicAPI::WHM
• cPanel::PublicAPI::WHM::CachedVersion
• cPanel::PublicAPI::XMLAPI

Split the distribution, or fix the version numbers to make them consistent (use the highest version number to avoid version downgrade).

Error: 1,2.3,2.8

Add all modules contained in this distribution to the META.yml field 'provides'. Module::Build or Dist::Zilla::Plugin::MetaProvides do this automatically for you.

This is not a critical issue. Currently mainly informative for the CPANTS authors. It might be removed later.