Cannot install PostgreSQL on Ubuntu 18.04 (18.04.1) LTS

Hardware: Mac Mini

OS Ubuntu 18.04.1 LTS

Fresh OS Install

Fresh Virtualmin install

Note 1 - on page supported OS includes Ubuntu 18.04 LTS

Note 2 - GPL install script downloaded today version 6.0.17 did not include Ubuntu 18.04 LTS

OS Updated

PostgreSQL was not installed.

Actions taken

Webmin>Un-used Modules

PostgreSQL Database Server

The PostgreSQL client program /usr/bin/psql was not found on your system. Maybe PostgreSQL is not installed, or your module configuration is incorrect.
The PostgreSQL package can be automatically installed by Webmin. [Link: Click here] to have it downloaded and installed using APT.

(click on “Click Here”)

Building complete list of packages ..

Are you sure you wish to install the 9 packages listed below? This may include dependencies of packages that you selected.
[Link: Install Now]
Package Current version New version Description
libpq5 None 10.6-0ubuntu0.18.04.1
libsensors4 None 3.4.0-4
postgresql-client-common None 190
postgresql-client-10 None 10.6-0ubuntu0.18.04.1
postgresql-common None 190
postgresql-10 None 10.6-0ubuntu0.18.04.1
postgresql None 10+190
postgresql-client None 10+190
sysstat None 11.6.1-1

(click on Install Now)

Now installing postgresql postgresql-client ..
HTTP/1.0 500 Perl execution failed Server: MiniServ/1.900 Date: Mon, 11 Feb 2019 00:00:54 GMT Content-type: text/html; Charset=iso-8859-1 Connection: close
Error - Perl execution failed

Undefined subroutine &package_updates::update_system_install called at ./ line 391.