checklink: getting error 500

I have just now started using www-validator locally in my debian system
Version : 4.3

when i tried to check the web page from one of the systems on the loacl 
The address bar of browser is set to http://localhost/cgi-bin/checklink 
and i gave the url to validate as the hostname of one of the local 
machines (eg.

First i got a message saying
Error: 403 Checking non public address is disallowed by check linker 

then i edited /etc/w3c/checklink.conf adding

Now i am getting the following error,

Error: 500 Can't locate object method "new" via package 

I don't know how to proceed.

"Now the storm has passed over me
I'm left to drift on a dead calm sea
And watch her forever through the cracks in the beams
Nailed across the doorways of the bedrooms of my dreams"

Received on Monday, 23 July 2007 23:34:02 UTC