I am using ISPmanager Lite and I want to use php 5.6 as some scripts do not install php7+ on my Ubuntu 16.04 LTS. So I installed PHP 5.6 alt but there is no way I can switch to 5.6.
When I go to PHP, and try to make 5.6.36 as default for Apache module, it is in grey so I cannot change it.
PHP mode is Apache only - no other choice to switch with www-domain setting and PHP version is 7.0.28 (native) in grey.
What should I do? My control panel version is 5.148.1-2018.04.20_13:25.