Plesk 11.5: Backup Error

[igraf]

hi
I still have problems with my backups (older Post: http://forum.parallels.com/showthread.php?288782-Backup-Problems-Plesk-11-5-40-MU3)
If I manually create a backup (Plesk Backup Manager, FTP-Repository), the following message appears at the conclusion
https://dl.dropboxusercontent.com/u/29958557/2013-09-22_185435.png
https://dl.dropboxusercontent.com/u/29958557/2013-09-22_185626.png

the backup has no error message in the log!
backup_log: [4479]: 16:50:20 DEBUG The dump have been exported to ftp successfully


Debian 6.0.7
11.5.30 Update #15

 

[igraf]

does anyone have the same problem as me?
who can help ....