Minecraft version - 1.20.1
Mod loader - Forge
Mod version - 1.8.4
I am using the latest version available - Yes

Describe the bug
The game crashes when opening

To Reproduce
Steps to reproduce the behavior:

1. Go to 'MInecraft Launcher'
2. Click on 'play'
3. My game crash

Expected behavior
That the game did not crash

Additional context
In version 47.1.3 Forge, better combat crashes when you just enter the game

For 47.1.3 use Better Combat 1.8.0.