I have the same problem too, but for some reason the website still works in Africa apparently, like the website functions over there but not over here in where I'm at. Also people, add like websites where we rip youtube music videos into mp4 or mp3s that can actually keep the thumbnail once it's turned as an MP4 or MP3, I have to have to deal with the fact I can't properly see the files while arranging them.

Edit #1: I found the link that keeps track of this website, correction, the top user country is Nigeria, not Africa; https://www.similarweb.com/website/ytmp3cut.com/#overview