Hiya,
If you read the article Steve linked you to, it specifically covers the message you are seeing, but in any event, here’s the explanation:
The problem is that you have both an Author URI and a Plugin URI field in your header (this is fine, you can have both), and these have the exact same link in both of them, they need to be different links.
Author URI should be a link to your own site or an about you page or similar.
The Plugin URI should be the page for the plugin, perhaps with details about the plugin, instructions that fall outside of the scope of the www.ads-software.com repository (signup for a required service for example).
Once these are different links, you shouldn’t see the message you are currently getting.