It is possible to create a site using the remoting api with an empty 'pm' value and no php5 service. when php5-fpm is enabled on such site (via gui) the value of 'pm' is not set. this causes an error in php5-fpm startup script (fails to load). if on the server php5-fpm is restart (stop+start) or the server is reboot, then all sites using php will be unavailable because php5-fpm fails to start. This is a "gui" problem (imho) as the empty 'pm' value is legit in the database and is not required for non-php site operation. ispcomm.