Forge Version 31.1.0

Log file (optional)

[05Feb2020 22:11:31.756] [Server thread/ERROR] [net.minecraftforge.eventbus.EventBus/EVENTBUS]: Exception caught during firing event: enemeez.simplefarming.block.growable.FruitLeavesBlock cannot be cast to net.minecraft.block.LeavesBlock
Index: 3
Listeners:
0: NORMAL
1: ASM: class net.silentchaos512.gear.event.GearEvents onServerTick(Lnet/minecraftforge/event/TickEvent$ServerTickEvent;)V
2: ASM: class net.silentchaos512.gems.chaos.ChaosEvents onServerTick(Lnet/minecraftforge/event/TickEvent$ServerTickEvent;)V
3: net.minecraftforge.eventbus.EventBus$$Lambda$2458/760462695@60283216
4: ASM: class com.maciej916.maenchants.ForgeEventSubscriber worldTick(Lnet/minecraftforge/event/TickEvent$ServerTickEvent;)V
5: ASM: net.minecraftforge.common.ForgeInternalHandler@13d54eb0 onServerTick(Lnet/minecraftforge/event/TickEvent$ServerTickEvent;)V
6: ASM: net.silentchaos512.gems.util.SoulEvents@409a6741 onTick(Lnet/minecraftforge/event/TickEvent;)V
java.lang.ClassCastException: enemeez.simplefarming.block.growable.FruitLeavesBlock cannot be cast to net.minecraft.block.LeavesBlock
at net.olafkeijsers.fastleafdecay.FldScheduler.tick(FldScheduler.java:55)
at net.minecraftforge.eventbus.EventBus.doCastFilter(EventBus.java:212)
at net.minecraftforge.eventbus.EventBus.lambda$addListener$11(EventBus.java:204)
at net.minecraftforge.eventbus.EventBus.post(EventBus.java:258)
at net.minecraftforge.fml.hooks.BasicEventHooks.onPostServerTick(BasicEventHooks.java:119)
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:823)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:635)
at java.lang.Thread.run(Unknown Source)

[05Feb2020 22:11:31.773] [Server thread/ERROR] [net.minecraft.server.MinecraftServer/]: Encountered an unexpected exception
java.lang.ClassCastException: enemeez.simplefarming.block.growable.FruitLeavesBlock cannot be cast to net.minecraft.block.LeavesBlock
at net.olafkeijsers.fastleafdecay.FldScheduler.tick(FldScheduler.java:55) ~[?:v20]
at net.minecraftforge.eventbus.EventBus.doCastFilter(EventBus.java:212) ~[eventbus-2.0.0-milestone.1-service.jar:?]
at net.minecraftforge.eventbus.EventBus.lambda$addListener$11(EventBus.java:204) ~[eventbus-2.0.0-milestone.1-service.jar:?]
at net.minecraftforge.eventbus.EventBus.post(EventBus.java:258) ~[eventbus-2.0.0-milestone.1-service.jar:?]
at net.minecraftforge.fml.hooks.BasicEventHooks.onPostServerTick(BasicEventHooks.java:119) ~[?:?]
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:823) ~[?:?]
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:635) [?:?]
at java.lang.Thread.run(Unknown Source) [?:1.8.0_241]
[05Feb2020 22:11:31.795] [Server thread/ERROR] [net.minecraft.server.MinecraftServer/]: This crash report has been saved to: C:\Users\6984j\Desktop\New folder.\crash-reports\crash-2020-02-05_22.11.31-server.txt
[05Feb2020 22:11:31.796] [Server thread/INFO] [net.minecraft.server.MinecraftServer/]: Stopping server
[05Feb2020 22:11:31.798] [Server thread/INFO] [net.minecraft.server.MinecraftServer/]: Saving players
[05Feb2020 22:11:31.887] [Server thread/INFO] [net.minecraft.network.play.ServerPlayNetHandler/]: Exarchai lost connection: Internal Exception: java.lang.StackOverflowError
[05Feb2020 22:11:31.889] [Server thread/INFO] [net.minecraft.server.dedicated.DedicatedServer/]: Exarchai left the game
[05Feb2020 22:11:32.181] [Server thread/INFO] [net.minecraft.server.MinecraftServer/]: Saving worlds
[05Feb2020 22:11:32.183] [Server thread/INFO] [net.minecraft.server.MinecraftServer/]: Saving chunks for level 'world'/minecraft:overworld
[05Feb2020 22:11:32.894] [Server thread/INFO] [net.minecraft.world.server.ChunkManager/]: ThreadedAnvilChunkStorage (world): All chunks are saved
[05Feb2020 22:11:32.940] [Server thread/INFO] [net.minecraft.world.server.ChunkManager/]: ThreadedAnvilChunkStorage (world): All chunks are saved

Describe the issue
My server suddenly and randomly crashed due to the above error.