Are you speaking about this "pipecode" : https://www.pipecode.org ?
It doesn't seem to need any special configuration, so your problem may be with setting up PHP or the FastCGIserver settings in hiawatha.conf. The default setting is :
FastCGIid = PHP7
ConnectTo = /run/php/php7.0-fpm.sock
Extension = php
but the php socket may be in another place or have another name. You can find the correct name in the .conf file of you php pool. It should be in /etc/php/7.0/fpm/pool.d/ (if your using php 7.0). The default pool is www and it's .conf file is www.conf
After that, don't forget to set up your Virtual Host to use PHP :
UseFastCGI = PHP7
For your configuration, I think you can paste it in a message within the [code] bbcodes. Don't forget to blank your informations if you don't want people to know it.