failed to establish umbilical to moderator

Hi

I'm getting the following error messages in the error log of the front
end server.

(111)Connection refused: Child 8122 failed to establish umbilical to
moderator!

I have to restart apache to resolve the problem.

This is the backhand entry in the httpd.conf file.

<IfModule mod_backhand.c>
  UnixSocketDir /usr/local/apache/backhand
  MulticastStats 212.43.240.18:4445
  AcceptStats 212.43.240.16/28
  BackhandConnectionPools Off
</IfModule>

This is the config for the virtual host that backhand is load balancing.

<Directory /usr/local/apache/htdocs/blah>
	Backhand removeSelf
	Backhand byAge
	Backhand byLoad
	Backhand bySession
</Directory>

Can anyone shed light on the reason for the messages.

Regards

Kee