Kinda new on this ntgl

Describe the crash
its more of a can't open the game crash, so just trying to open isn't working for me

To Reproduce
Steps to reproduce the behavior: So, worked when i didn't put the files for the good music, but when i did(and also used the guide to upradge fps) it stopped launching the game, gets ready and then, crashs

Crash Log
crash-2020-03-30_11.02.22-client.txt

Additional context
It had worked more than perfectly before, i played without the correct optimization and music and it worked fine, did have optifinte, but still were some fps downfalls and spikes, i have fallen in love with this modpack and a friend of mine wich i was playing with had no issues and told that i should enhance my experience with the good music, i really wanna use the good music, thx lov ya all

It's because of the custom music. Follow the wiki exactly. If it still crashes, I heard it might be busy you need Java 8 instead of the latest. I haven't tested it though and have been fine with the latest Java.