This issue typically occurs when the system is unable to properly impersonate the database user during the patch process, which prevents updates to the required SQL tables.

To resolve the issue:

1. Grant local administrator privileges to the service account being used for the Data Platform and User Console services.
2. Update the logon settings:
   1. Open Services (services.msc).
   2. Locate both Flexera Data Platform and User Console services.
   3. Right-click each service. Select Properties > Log On tab.
   4. Change the logon from Local System account to the designated service account.
3. Restart the services after updating the logon settings.
4. Reapply the patch once the services are running under the correct account.

After applying these steps, the patch should complete successfully, and the SQL table updates should process without errors during the upgrade from version 5.5.77 to 5.5.78.