Could not connect to BI system

What causes this issue?

The connection to the BI system is not available.

System Response

The system cannot update the scenario accruals, and cannot display the
scenario analyses.

How to fix this error?

Contact system administration.

Procedure for System Administrators

The BI system may be down, or the connection may not be properly set up
in Customizing.

Error message extract from SAP system. Copyright SAP SE.