Minecraft Version: 1.12.2
Forge Version: 14.23.5.2836
Mod Version: 1.6.2
Singleplayer/Multiplayer: Multiplayer
Description:
There are so many rabbits in my server which cause lag, reduce tps and crash the server.
Here is the crash report: https://paste.ubuntu.com/p/M2bSdkffBP/
Also, I use Sampler Mod to export sampling data, Here are the first one and the second one.

Same problem with all kinds of animals. Depends on the Biome.
I'm not sure that's ever fixed. It's been reported for months.
#270

Hello, Please go to configuration and test? Are you installing this mod only?

Updated: This has something to do with the coding of this mod. (Spawning Issue) (Bug)

We found a problem with rabbits in particular. It was a code issue. That doesn't explain the other animals overspawning, but Rabbits will spawn more reasonably in the next update.

So, fixed in next release