The Application event log could not be backed up to file C:\BACKUP\ESLOG\BULL_09022006.EVT due to the following error:
Cannot create a file when that file already exists.
This event is logged by EventSentry when an event log cannot be backed up because a file with the same name already exists. To solve this issue you can rename the existing file or the change the backup file name.
This feature can be configured at Packages -> System Health Packages -> Package Name ->Backup Event Logs -> Schedule and double click on the existing schedule.