Description
It's a crash, probably due to incompatibility, it doesn't happens without UTeamCore and Music Player

Steps to reproduce the behavior:

1. Create a Vanilla Profile/MultiMC instance with the following mods: (look at screenshots)
2. Open the instance
3. Watch minecraft die

Expected behavior
The game should start up normally

Screenshots

Versions

• Mod version: 2.1.107
• Minecraft version: 1.8.9
• Forge version: 11.15.1.2318
• UTeamCore version: 1.8.9-1.3.0.63

Logs
Two different crashes happened due to this:
https://paste.ee/p/e7F26
https://paste.ee/p/LraJ1

Should be fixed with this version https://www.curseforge.com/minecraft/mc-mods/music-player/files/3841508

This is a known incompatibility with patcher