Parsnip Sadness 2.0 :(

---- Minecraft Crash Report ----
// Everything's going to plan. No, really, that was supposed to happen.

Time: 2/16/19 9:38 PM
Description: Exception in server tick loop

java.lang.NoClassDefFoundError: scala/actors/threadpool/Arrays
	at otter.mod.world.gen.generators.WorldGenCustomStructures.generateStructure(WorldGenCustomStructures.java:43)
	at otter.mod.world.gen.generators.WorldGenCustomStructures.generate(WorldGenCustomStructures.java:33)
	at net.minecraftforge.fml.common.registry.GameRegistry.generateWorld(GameRegistry.java:167)
	at net.minecraft.world.chunk.Chunk.func_186034_a(Chunk.java:1020)
	at net.minecraft.world.chunk.Chunk.func_186030_a(Chunk.java:999)
	at net.minecraft.world.gen.ChunkProviderServer.func_186025_d(ChunkProviderServer.java:157)
	at net.minecraft.server.MinecraftServer.func_71222_d(MinecraftServer.java:344)
	at net.minecraft.server.integrated.IntegratedServer.func_71247_a(IntegratedServer.java:142)
	at net.minecraft.server.integrated.IntegratedServer.func_71197_b(IntegratedServer.java:156)
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:486)
	at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.ClassNotFoundException: scala.actors.threadpool.Arrays
	at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:191)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
	... 11 more
Caused by: java.lang.NullPointerException
	at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:182)
	... 13 more


A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- System Details --
Details:
	Minecraft Version: 1.12.2
	Operating System: Windows 10 (amd64) version 10.0
	Java Version: 1.8.0_51, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 653303144 bytes (623 MB) / 1231028224 bytes (1174 MB) up to 2863661056 bytes (2731 MB)
	JVM Flags: 4 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx3072m -Xms256m -XX:PermSize=256m
	IntCache: cache: 0, tcache: 0, allocated: 13, tallocated: 95
	FML: MCP 9.42 Powered by Forge 14.23.5.2815 6 mods loaded, 6 mods active
	States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored

	| State  | ID        | Version      | Source                        | Signature                                |
	|:------ |:--------- |:------------ |:----------------------------- |:---------------------------------------- |
	| LCHIJA | minecraft | 1.12.2       | minecraft.jar                 | None                                     |
	| LCHIJA | mcp       | 9.42         | minecraft.jar                 | None                                     |
	| LCHIJA | FML       | 8.0.99.99    | forge-1.12.2-14.23.5.2815.jar | e3c3d50c7c986df74c645c0ac54639741c90a557 |
	| LCHIJA | forge     | 14.23.5.2815 | forge-1.12.2-14.23.5.2815.jar | e3c3d50c7c986df74c645c0ac54639741c90a557 |
	| LCHIJA | jei       | 4.13.1.225   | jei_1.12.2-4.13.1.225.jar     | None                                     |
	| LCHIJA | om        | 1.0          | parsnip-1.0.jar               | None                                     |

	Loaded coremods (and transformers):
	GL info: ~~ERROR~~ RuntimeException: No OpenGL context found in the current thread.
	Profiler Position: N/A (disabled)
	Player Count: 0 / 8; []
	Type: Integrated Server (map_client.txt)
	Is Modded: Definitely; Client brand changed to 'fml,forge'