This event occurs when a database query cannot complete or fails, usually after an upgrade indicating that the upgrade had problems. As a result, Session Manager might not operate correctly.

This event can occur if the database schemas do not match, indicating that variable types are different or fields are nonexistent.

Go to Avaya Support site to check the database versions and ensure the version are correct and compatible. In particular, the schemaversion table in the System Manager and Session Manager databases must have appropriate and matching version entries for major, minor, revision and schemaname columns.