OK...so i got a GoPro for my b-day...wooohooo

been working on videos...edit,music,so on and so forth....first one was like 20 mins

so i finaly got um down to the 4 + 5 min mark
then i go to publish....and all was good....wake up this am and have an e-mail sayin copyright infrengment crap .... WTF... I payed for my music i didnt steel it from other free music sites....i dont understand ! if i pay for the music i still dont have the right to use it ?
thanks for any help on this guys.....