Problem with Restore backup after install Zend Optimizer

[Scolpy]

Hello!
I've installed Zend Zend Optimizer 3.3.3, I've try to restore backup from some user, but I've got this message system:

Subject: An error occurred during the restore.

Error extracting /home/user/backups/backup/home.tar.gz : /bin/tar: php.ini: Cannot open: File exists
/bin/tar: Error exit delayed from previous errors

How can i fix this problem?

Thanks a lot.
Yonatan