Youtube copyright problems..help?

well i have 2 lyric videos on my youtube channel and neither of them have copyright issues..i think its because the artists' name are tagged in the title and you can click on them and it will lead you to their youtube channel. the videos are only blocked in germany. well recently i made a 3rd lyric video and it was blocked worldwide b/c of copyright problems. so i filed a dispute with the explanation of section 102 or 107 (dont remember which one) or the copyright act of 1976and it worked for a little bit but then like 12 hours later it was taken down and i got a copyright strike! i took the video down reuploaded and filed a dispute and i got another copyright strike! can someone tell me why my other videos were fine, how to fix this and also how to get rid of the copyright strikes?! please and thank you! oh, and i have absolutly NO intention of making money off these videos.