Forge version:
Twilight Forest version: 2.3.7
Link to crash log: https://pastebin.com/pPhRN8De

Steps to reproduce:

1. Go into the Twilight Forest with Fancy Block Particles mod enabled.
2. Wait for a second or 2.
3. ???
4. Profit

What I expected to happen:
For it to work normally.

What happened instead:
Crash to multiplayer screen.

Original post: TominoCZ/FancyBlockParticles#82

I am pretty sure 1.7.10 is no longer supported here - 441b472 should've fixed it, but that's 1.12 land.

1.7.10 is unsupported as @Hubry said.