I am having issues when playing music on Spotify (desktop version). I play a song and after 5 seconds, it stops and a blue bar with the text "Can't play the current song". I have seen something similar happen to others and found a solution;
I wanted to try this, but when I got to the hosts step, when I opened the notepad++, it didn't come up the way it said it would. It just came up with null. I'll provide an image to show you what I mean.
I've followed the instructions you provided. I uninstalled Spotify, checked to make sure that there are no Spotify folders, reinstalled it and tried to see if I can play the song that doesn't stop at 5 seconds, but the problem still persists.