ERROR:: The main body of virus data is out of date (542)

[Pepe Chavez]

Hi, first of all, sorry for my bad english.
In this morning, this message begin to appear...

Jan  8 08:25:21 MailScanner[1689]: ERROR:: The main body of virus data is
out of date (542):: ./i08DP7or002447/msg-1689-9.html
Jan  8 08:25:21 MailScanner[1689]: Virus Scanning: SophosSAVI found 1
infections
Jan  8 08:25:21 MailScanner[1689]: Virus Scanning: Found 1 viruses
Jan  8 08:25:21 MailScanner[1689]: Uninfected: Delivered 1 messages

The MTA still working, but I dont know what to do to fix this.

Thanks for your help