New video question

[hanzke]

hi there everybody,

i'm kinda new on youtube and i made my new vid.
it's made by erasing the sound and put a youtube song from the list in the background.
Now this vid i can't monetize? why is that? my other vids are all monetized.
if i select the vid an go to monetize i get a red thing with undefined in it.
can somebody explain to me?

ps. my language is not english so it's a little bit difficult to search the entire forum.

thnx

 

[Thrashbat]

Welcome to the YTtalk forums!

Your syntax is hard to understand. I think you're not using royalty free music and so you can't monetize it.

 

[hanzke]

Welcome to the YTtalk forums!

Your syntax is hard to understand. I think you're not using royalty free music and so you can't monetize it.

so there are music numbers on that list that are royalty free? and how do i see that?

btw, thanx for the fast respond