Error WARNING!! Error in process_request eval block: /usr/sbin/spampd: write error acknowledging QUIT: Broken pipe

[Richmond Dyes]

I am running postfix on my emailserver with Vams antivirus.  I have put 
spamassassin on another pc and using spampd as my proxy, I am relaying 
email from postfix and vams to the spampd proxy back to the email 
server.  I keep getting the error below.  it doesn't seem to be 
affecting my email.
WARNING!! Error in process_request eval block: /usr/sbin/spampd: write 
error acknowledging QUIT: Broken pipe

From the Vams side I get the error.
The error is: max retry has exceeded

Action    : failed

Mail details:

Any ideas?