I've moved this to youtube discussion as this isn't a tubebuddy question. Unfortunatly it seems that you've used copyrighted music to acompany your poetry and the music lable has claimed the video.
Your best course of action would be to remove the video, edit in a way that there's no music (or use music from the youtube audio library
https://www.youtube.com/audiolibrary/music )
Your other course of action you can take, is to dispute the claim and HOPE that the copyright owner of the music side of the video releases the claim, but they can then chose to give a strike against your channel in that case.
IF however there is no music in the video and it's your own poetry reading with no music, and you own the rights to the poetry and you're not reading poetry from online, it could be a false claim in which case you can dispute the claim, and the person who made the claim gets punished for making a false claim.