@leocg It was the Open Ad Blocker extension.

@leocg I haven't, but I found the problem. I reset the browser and everything is good now. Thank you for your time.

@leocg Yes I did, I tried on Edge and it still works perfectly. I also disabled all the extesions and did the stuffs in the link.

This morning I could still open YouTube to watch some videos, but now when I go to the website, it's just like in the picture, it doesn't load or show any thumbnails. I can't even scroll down or do anything. I tried reload a few times but it doesn't change at all. Please help!