Symantec Backup Exec 12.5 - No Notification and Service Terminated Unexpectedly

Environment
  • Symantec Backup Exec 12.5

Content
Not received any message from Symantec Backup Exec 12.5 for backup tasks. While checked its setting of notification, got this error

Then, Symantec Backup Exec service was stopped. In addition, there was an error log
Event Type: Error
Event Source: Service Control Manager
Event Category: None
Event ID: 7034
Date: 2/15/2012
Time: 4:09:23 PM
User: N/A
Computer: BackupServer
Description:
The Backup Exec Server service terminated unexpectedly. It has done this 2 time(s).

For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.

It was because of a setting of a notification group. It was simply solved by deleting the group, then creating a new one