YouTube’s Content ID system attempts to match music used in videos with its database of copyright owners and is intended to earn advertising revenue for the copyright owner. If you’ve used a track of mine in your video and you’ve already purchased a license from me, you don’t have to have adverts placed on your video and you can show your license to YouTube to remove the dispute.
Alternatively if you’ve bought a license, you can also drop me a quick message with your YouTube channel or video URL and I’ll get the claim released for you. Please contact me here and I’ll do the rest.