Is there anyway to Berichten someone on youtube?

There's this 10 oder 11 Jahr old girl on this one Hetalia video who literally wont stop trolling. She's been cursing, attacking, and even threatening people there in the comments. I saw her there months Vor and I go back to the video and she's still there. Almost every single Kommentar someone post she Antworten back saying something like, "YOUR A RETARD!", oder "NOBODY GIVES A SHIT!", oder something insulting the show.

Ugh, she's not letting up at all. it seems that people in the Kommentare have been trying to ignore her but she seems to just get worse and worse with her replies.

Is there anyway I can Berichten her at all? oder contact the people who run youtube?