Why do I get this email constantly?

Subject: Cron <root@zeus> /usr/lib/sa/sa1 1 1
From: root@zeus.ironmagwebhost.com (Cron Daemon)
Message:
/bin/sh: line 1: /usr/lib/sa/sa1: is a directory

and how can I stop it?

thanks Why do I get this email constantly?

 

 

 

 

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