We'd like to help. Mind sharing more details about the issue with a screenshot of the Copyright Notices section of your Video Manager? We'll look into it. Thanks.
If your videos has content ID claim/match, copyright owners can choose to monetize/block their content. In this case, the owner has decided to block the content. Explained in detail here: https://goo.gl/Jphkf7 . Note: YouTube can't mediate copyright disputes.