Custom Heist Track Help

I'm working on a mod_overrides custom heist track mod and i'm having some trouble. This is the video i'm using as reference: https://youtu.be/NE71fAApamg
I have 2 problems. One of the custom tracks works but the title in game appears with "Error: menu_jukebox" in front of it. The second custom track doesn't have that error title but it crashes my game when I select it on the briefing screen.
Replies
I think your en or main have spaces in them instead of underscores.