Akeeba Solo requires PHP or any later version to work.
We strongly urge you to update to PHP 5.5 or later. If unsure how to do this, please ask your host.
Version numbers don't make sense?
Your version of PHP, , has reached the end of its life. You are strongly urged to upgrade to a current version, as using older versions may expose you to security vulnerabilities and bugs that have been fixed in more recent versions of PHP.