Nginx connect() to unix:/var/run/fcgiwrap.socket failed
The socket has to be readable and writable by both client and server. Under the assumption that the server is running as www-data and the client is running as forge with group forge, the following steps should fix the issue.
Change the group ownership of the socket to the group of user forge.
chgrp forge /var/run/fcgiwrap.socketChange the group permission to allow write for group forge.
chmod g+w /var/run/fcgiwrap.socketThe socket will now be readable and writable by both server and client.