What's the issue you encountered?

when I tried to do the /weather set rain command, the server just closed, and took me to the multiplayer list, even though I was on singleplayer!
it also happened when I didn't enter that command.

How can the issue be reproduced?

1. the rain will start
2. the screen goes black, and server closed. says "connection lost ; server closed"
3. takes me to the multiplayer menu even if you're on singleplayer!

Logs

https://mclo.gs/MsC1ED4

Mod Version

9.1.0.0

Additional information

other mods:

• snow! real magic
• kiwi
• glitch core
• biomes o' plenty
• serene seasons fix
• essential mod

not a serene seasons dev but i was looking into your log and i'd say the problem is snow under trees mod, try removing it