Could not connect to the database
The install wizard database step could not run a simple connection test. Full text asks you to check host, port, database name, username, and password.
Why this happens
This is not a member login error. POST /api/install/env (or the wizard’s DB test) failed to SELECT 1 against Postgres — wrong credentials, firewall, wrong DB name, or Postgres down. More specific installer messages may appear for auth failure or timeout.
Diagnose and fix
1. On the VPS: confirm Postgres is running and listening on the expected host/port.
2. Verify database name, user, and password; test with psql from the app host.
3. Allow the app server through any firewall/security group to Postgres.
4. Re-run the install wizard DB step; fix DATABASE_URL in .env if editing by hand.