Webstats does not work - Directory Listing Denied

[arazas]

I have Plesk 8.6.0.1 for Windows. Webstats are not working for any domain. It is showing following error

Directory Listing Denied
This Virtual Directory does not allow contents to be listed.


Please help us to resolve this immediately.

 

[prince]

Url

Please give a sample URL with the issue.