php 5.6 not detected

Hi,
I am using Ubuntu 16.04 and a fresh installation of Webmin/Virtual
I used external ppa to provide php 5.6, but it seems it is not recognized in Virtualmin menu…

I see “PHP 7.0 Configuration” and “PHP 7.1 Configuration” but not 5.6…

anyway Ubuntu packages are okay:

dpkg -l |grep php |awk ‘{ print $2 }’

libapache2-mod-php7.0
libapache2-mod-php7.1
php
php-cgi
php-cli
php-common
php-fpm
php-mbstring
php-mysql
php-pear
php-xml
php5.6-common
php5.6-gd
php5.6-json
php5.6-mbstring
php5.6-mcrypt
php5.6-mysql
php5.6-readline
php5.6-xml
php5.6-zip
php7.0
php7.0-cgi
php7.0-cli
php7.0-common
php7.0-fpm
php7.0-json
php7.0-mbstring
php7.0-mysql
php7.0-opcache
php7.0-readline
php7.1
php7.1-cgi
php7.1-cli
php7.1-common
php7.1-fpm
php7.1-json
php7.1-mbstring
php7.1-mysql
php7.1-opcache
php7.1-readline
php7.1-xml
webmin-php-pear

any suggestion?
Thank you