[Postfix-es] Error de Amavis-New !!! Helpme

[Yuri Arbelo Gonzalez]

[root en atenea root]# service amavisd restart
Shutting down Mail Virus Scanner (amavisd):                [FALLÃ]
Starting Mail Virus Scanner (amavisd): Digest::MD5 version 2.22
required--this is only version 2.20 at /usr/sbin/amavisd line 1323.
BEGIN failed--compilation aborted at /usr/sbin/amavisd line 1323.
                                                           [FALLÃ]

Alguien comprende que debo hacer en este error,

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    Prog. Yuri Arbelo Gonzalez
Administrador de Redes y Programador
     Emp. Piensos Tropicales

         Linux User 333203
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