The data_engine probe is not connecting to the database.
The log shows error 0x80004005 - Logon failed due to trigger execution.
Release : 20.4
This error is not related to UIM but is a problem on the database server. Specifically, someone has likely created a logon trigger which is failing for some reason.
Your DBA will need to investigate the source of the logon trigger and remove or correct it.
https://learn.microsoft.com/en-us/sql/relational-databases/triggers/logon-triggers