Database Connection Failed

Error: SQLSTATE[08S01] SQLDriverConnect: 20009 [FreeTDS][SQL Server]Unable to connect: Adaptive Server is unavailable or does not exist

Troubleshooting:

1. Check database credentials in this file (lines 2-6)
2. Verify MSSQL server is accessible from this server
3. Ensure FreeTDS is installed: odbcinst -q -d