Constant threat detects when loading youtube videos (picture)

Hey, today while I was on youtube, whenever I open up any youtube video avast would pop up a window saying a threat has been detected.

I don’t know how to add pictures in so I’ll just put a link to the photo http://gyazo.com/39f859b447998714462f84932e0f4c58

Thanks in advance!

Edit: I apologize I’m not sure why it sent 3 times, It must’ve been because I spammed the save buttion, since I was getting frustrated on how hard the Verification is

https://forum.avast.com/index.php?topic=53253.0