1.20.1 after update when loading word

[TryHackX]

What's the issue you encountered?

The game crashed whilst exception ticking world
Error: java.lang.NoClassDefFoundError: sereneseasons/config/ServerConfig

How can the issue be reproduced?

update to new

Logs

https://gist.github.com/TryHackX/acfc056dea426a1a0081a4f4f86a700e

Mod Version

9.1.0.0

Additional information

No response

[Darwin1546]

Same thing
Also. What is happening with versioning?

9.1 comes after 9.3 wut?

[itsdeadfrosty]

im running these mods together and they dont play nice. i cant even get a damn crashlog. so much pain. FORGE 20.1

maybe theres incompats

so Serene x Glitch x Tough works FINE. still testing...