I can't show you where exactly I blocked youtube, because I already blocked the elements, they disappeared, I can tell you that I blocked all the videos which were in "Recommended" Section in youtube.
Never Mind, I fixed it by re-installing the browser,
You seem that you worked with avast for years and years and years and you are still working with them, I have read a lot of your posts before, so I think you can deliver my message to them and make them see it quickly.
Please tell them to make a list for the blocked elements, and make a button to unblock the blocked elements, instead of searching for hours in the browser settings and the "Inspect" Page.
Thank You Very Much.