Purging test history failed. Not connected to database. (4318731)

You will see the following error in your Health Tests.

The following errors occurred during database processing of test results for “ExchangeServerName” :
- Purging test history failed. Not connected to database. Query: System.Data.SqlClient.SqlCommand. Inner exception: The Database ID 5, Page (1:47634), slot 1 for LOB data type node does not exist. This is usually caused by transactions that can read uncommitted data on a data page. Run DBCC CHECKTABLE. Purge test results history manually from the database page in the Management Console if problem persists.
- Purging web reports data failed. Invalid operation. The connection is closed. Purge web reports data manually from the database page in the Management Console if problem persists.
- Adding test history failed. Invalid operation. The connection is closed.
- Adding web reports data failed. Invalid operation. The connection is closed.