Forge Version
1.15.1-30.0.41

Mod list (optional)
https://github.com/NillerMedDild/Enigmatica5/blob/master/CHANGELOG-MODS.md

Log file (optional)
https://pastebin.com/Cy7W90jg

Describe the issue
Harvesting Cherry Tree leaves crashes the server.

Unfortunately, the log file doesn't tell me much. There is something being done within the fast leaf decay mod where FruitLeavesBlock is casted to a LeavesBlock from Minecraft. I can't tell exactly as the github page for that mod doesn't seem to be updated.

However, a goal of mine was to get the leaf decay of my fruit leaves to simulate vanilla instead of being instantly deleted. So perhaps changing around the code and behavior of my leaves will fix this issue.

Worth a shot :D I guess there's not much else to do, when the source code isn't available.