PHP selector does not work, no PHP handler versions displayed

Issue

• CloudLinux PHP selector does not work. 
• Installed alt-php versions is not visible in "PHP selector"
• No CloudLinux PHP handlers can be selected in "PHP selector", whilst all required alt-php packages installed
• /etc/cl.selector/selector.conf is empty

Environment

• CloudLinux OS
• PHP selector

Solution

Recreate /etc/cl.selector/selector.conf

1. Reinstall alt-php packages

   # yum -y reinstall alt-php??-common alt-php??

2. Update CageFS

   # /usr/sbin/cagefsctl --force-update

Cause

Corrupted alt-php installation resulted in the broken /etc/cl.selector/selector.conf file