why does "edit profile" not work anymore?

i really don't know why this is happening or if it's me who has been doing things wrong, but I can't even put a background on my profile, or music from YouTube or anything. Nothing works, it doesn't matter where I copy the code or where I get the url of the image I want for my background, it just doesn't work, the youtube music doesn't play (This is what I've had the most trouble with and I'm a little confused) is this normal or smt? maybe im copying the codes in a wrong way but idk so,,, has this happened to any of you recently? Ꮚ⁠˘⁠ ⁠ꈊ⁠ ⁠˘⁠ ⁠Ꮚ...