I crashed while trying to bonemeal a Runewood Sapling, the Pastebin is posted below. After loading up the pack and getting into the world, there was a crazy amount of lag which I thought was related to worldgen and crashed again, Pastebin for that is also posted below.

Bonemeal crash log: https://pastebin.com/meYirGTt

'Worldgen' crash log: https://pastebin.com/BN4FT0x8

This was ages ago sorry !!! I'm pretty sure you just had an outdated lodestone version.