App Experience Analytics (AXA) or Log Analytics version 17.3.x on premise.
These steps assume your database has already started and is ready to accept connections.
Please ensure your that your AXA database (either Oracle or Postgres) has been started prior to launching the AXA process. Normally, the database instance will reside on a separate server. If not, please consult your corresponding Oracle or Postgres documentation for steps on how to configure automatic startup for the database process as well.