Weird threat secured (I'm worry)

So it been two time in one hour that I had Avast block a URL from my Opera browser but the weird thing is that I didn’t open any page, i was just watching a YouTube video. I never had that before and Im not sure if I just be worry or not. I did a quick scan and nothing found. I insert a picture of the Avast popup

https://i.gyazo.com/054b3baefd838c9f26f17445eabbcde5.png