Backup Exec fails with a writer status error. The backup exec error code is E000FED1. It appears in the eventlog of the server with the ID 34113.
This can happen if one of the writers fails while performing backup of the shadow copies.
There is a KB article from Symantec for this specific error. It can be found here.
You could check the points mentioned in the post or just reboot your server to solve the issue.
Update: The solution provided above does only work on a 2003 server based system. Thanks to John for the hint.