Amcheck error clarification

[Zombie]

I have Amanda working with backing up and restoring on another system.  But 
when I add the server into the disklist, I get the following error when 
running Amcheck:
                ERROR: mercury.isni.net NAK: expected "PROGRAM", got "OPTIONS"
Mercury, of course if the server, and an attempt at being a client as 
well.  Can you clarify this error a little for me, and perhaps help me to 
resolve this.
Thank you,
Don Mohlmaster
ISNI Systems Administrator