This sometimes happens when YouTube or another website is trying to automatically enforce a claim on the music in the video.
There should be an option for you to dispute the Content ID claim in YouTube. This is a recent how to guide for disputing the claim: https://support.google.com/youtube/answer/2797454
If your video used one of the Biteable provided tracks then, if you enter a message something like below, you should be able to remove the claim:
"I have obtained permission to use the music in this video through Biteable.com (License agreement: https://biteable.com/license-agreement/) please remove the claim on my video."
If you uploaded a track yourself to use in your Biteable video (maybe sourced from somewhere online) then you will need to provide proof of copyright license in the dispute submission.