Missing genieacs database

Hi, I install genieacs in a new server, but the database missing in the mongodb folder, I follow the http://docs.genieacs.com/en/latest/installation-guide.html installation guide, but the database seems that it was not created on the installation progress, someone can help me?

The first time you open the UI you’ll be greeted with an initialization wizard which should create the database.

Thanks for the answer, the problem was that the mongodb service did not start because it gave errors, when I solve this, all in the geniacs work fine.