Can't promote due to audio copyright issue

I want to promote a recent post that good great engagement, but the "Increase views" button on the post is greyed out, and if I try to press it I get "Can't promote due to audio copyright issue".

I literally just used a generic audio directly from TikTok. Is there a way to fix this for this post? Is there a way to know which audios are safe to use for future posts?