CentOS7でpassenger-configやpassenger-statusがエラーになる。 CentOS Linux release 7.2.1511 (Core) Apache/2.4.6 (CentOS) Phusion Passenger 5.0.23 (passenger-install-apache2-moduleでインストール) $ passenger-config restart-app *** ERROR: Phusion Passenger doesn't seem to be running. If you are sure that it is running, then the causes of this problem could be one of: 1. You customized the instance registry directory u