validating error need help

I installed and configured the Validator on one of my local machine - I am able to click on the link that takes me to the Markup Validation Servicev0.6.6 on that local machine and when I go to validate by URL and type in the address and click check - I get the following errors below.  What is causing this?  Did I miss something in the instalaltion or any thoughts to this?  Thank you.
 

Object not found!


The requested URL was not found on this server. The link on the referring page <http://158.114.148.90/validator/>  seems to be wrong or outdated. Please inform the author of that page <http://158.114.148.90/validator/>  about the error. 

If you think this is a server error, please contact the  <mailto:root@localhost> webmaster 


Error 404




158.114.148.90 <http://158.114.148.90/>  
Wed 23 Jun 2004 04:18:46 PM EDT 
Apache/2.0.40 (Red Hat Linux) 

Received on Wednesday, 23 June 2004 16:10:44 UTC