Nginx error 404 at maintainance page - mode Drupal 7
i am operating a digital ocean droplet with nginx 1.8.1 / drupal 7 site
when i updated from Nginx 1.4.6 i see maintenance page for my drupal site
not working .Returns 404 not found . So site is down.
At var/log/nginx i get this:
"/usr/share/nginx/html/50x.html" failed (2: No such file or directory), client: xx.xx.xxx.xx, server: www.example.com, request: "GET / HTTP/1.1", upstream: "fastcgi://unix:/var/run/php5-fpm.sock", host: "www.example.com"
i tried also this https://groups.drupal.org/node/256708#comment-824983
but with no luck.
Can you help?