The database "wordpress_5" (local server) has been copied to database "wam"

[srvadm]

I manage a dedicated server running a Wordpress application. Normally I receive messages from Autoinstaller reporting Plesk Panel (11.0.9) updates but today i received this message:

Subject: The "wordpress_5" database has been copied.
Date: Mon, 16 Jun 2014 13:15:15 +0200
From: System <root@...>
Reply-To: System <root@...>
To: ...

The database "wordpress_5" (local server) has been copied to database "wam" (local server).


I've checked log files but can't see info related to this subject, no "wordpress_5" DB

Any cue?