Perl module XML::Simple not installed error when trying to use S3 with Virtualmin

Background

Whilst trying to access the S3 configuration on a newly installed Virtualmin server, you might encounter the following error:

The Perl module XML::Simple needed to communicate with Amazon’s S3 service is not installed

The solution is to use Webmin to install the Perl module. Navigate to:

Webmin->Others->Perl Modules then add XML::Simple in the From CPAN, named input box and press Install

Reference

https://www.hostwinds.com/guide/install-new-perl-modules-virtualmin/