Document Server fail on restart

[mmoffet]

I inherited a web app that utilizes only office document server. It's been sitting there running fine for some time, but the decision was made to downsize the EC2 it was running on. When we restarted the server, all that loads is an Only Office welcome screen. I can't seem to find any settings or commands to get it pointing back to the actual app - everything on the server itself seems to be running including mysql and nginx.

Is there a flag or command somewhere I have to pass to disable this initial welcome screen? It's running on an Ubuntu image, if that helps.

[Maxim]

Hello mmoffet!
1 You have Document Server installed only?
2 Only Office welcome screen loads like this

Document-Server-Status.png (4.94 KiB) Viewed 656 times

If yes than it means that your Document Server works correctly.
If for some reason you dont know what to do with it than you should go here
3 or you need to disable that welcome screen?