You tried going to https://music.ubc.ca/media-archive/2017/2/9/the-2017-sonic-boom-music-festival-is-around-the-corner, and it doesn't exist. All is not lost! You can search for what you're looking for.
https://music.ubc.ca/media-archive/2017/2/9/the-2017-sonic-boom-music-festival-is-around-the-corner