After rebuilding app my discourse went to a completely new Discourse installation

Hey, as I said in the title, after rebuilding app my discourse went to a completely new discourse instalation.

The files are still here, but i cannot seem to make discourse go back to how it was.

Does anybody know anything about this?

Is your DNS pointing to the correct server?

Yes it is, it was working well, i rebuilt the app and now it shows an empty discourse