CustomEntity Crash Report

---- Minecraft Crash Report ----
// My bad.

Time: 13/03/17 18:06
Description: Exception in server tick loop

net.minecraftforge.fml.common.LoaderExceptionModCrash: Caught exception from Sparky's Mod (servermod)
Caused by: java.lang.NoClassDefFoundError: mod/sparkyfox/servermod/models/ModelCustomEntity
	at mod.sparkyfox.servermod.ServerMod.init(ServerMod.java:71)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at net.minecraftforge.fml.common.FMLModContainer.handleModStateEvent(FMLModContainer.java:643)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at com.google.common.eventbus.EventSubscriber.handleEvent(EventSubscriber.java:74)
	at com.google.common.eventbus.SynchronizedEventSubscriber.handleEvent(SynchronizedEventSubscriber.java:47)
	at com.google.common.eventbus.EventBus.dispatch(EventBus.java:322)
	at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:304)
	at com.google.common.eventbus.EventBus.post(EventBus.java:275)
	at net.minecraftforge.fml.common.LoadController.sendEventToModContainer(LoadController.java:246)
	at net.minecraftforge.fml.common.LoadController.propogateStateMessage(LoadController.java:224)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at com.google.common.eventbus.EventSubscriber.handleEvent(EventSubscriber.java:74)
	at com.google.common.eventbus.SynchronizedEventSubscriber.handleEvent(SynchronizedEventSubscriber.java:47)
	at com.google.common.eventbus.EventBus.dispatch(EventBus.java:322)
	at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:304)
	at com.google.common.eventbus.EventBus.post(EventBus.java:275)
	at net.minecraftforge.fml.common.LoadController.distributeStateMessage(LoadController.java:147)
	at net.minecraftforge.fml.common.Loader.initializeMods(Loader.java:809)
	at net.minecraftforge.fml.server.FMLServerHandler.finishServerLoading(FMLServerHandler.java:109)
	at net.minecraftforge.fml.common.FMLCommonHandler.onServerStarted(FMLCommonHandler.java:336)
	at net.minecraft.server.dedicated.DedicatedServer.init(DedicatedServer.java:218)
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:507)
	at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.ClassNotFoundException: mod.sparkyfox.servermod.models.ModelCustomEntity
	at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:191)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	... 33 more
Caused by: net.minecraftforge.fml.common.asm.ASMTransformerWrapper$TransformerException: Exception in class transformer net.minecraftforge.fml.common.asm.transformers.SideTransformer@3b366632 from coremod FMLCorePlugin
	at net.minecraftforge.fml.common.asm.ASMTransformerWrapper$TransformerWrapper.transform(ASMTransformerWrapper.java:257)
	at net.minecraft.launchwrapper.LaunchClassLoader.runTransformers(LaunchClassLoader.java:279)
	at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:176)
	... 35 more
Caused by: java.lang.RuntimeException: Attempted to load class mod/sparkyfox/servermod/models/ModelCustomEntity for invalid side SERVER
	at net.minecraftforge.fml.common.asm.transformers.SideTransformer.transform(SideTransformer.java:56)
	at net.minecraftforge.fml.common.asm.ASMTransformerWrapper$TransformerWrapper.transform(ASMTransformerWrapper.java:253)
	... 37 more


A detailed walkthrough of the error, its code path and all known details is as follows:
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-- System Details --
Details:
	Minecraft Version: 1.11.2
	Operating System: Windows 7 (amd64) version 6.1
	Java Version: 1.8.0_121, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 1938834000 bytes (1849 MB) / 2077753344 bytes (1981 MB) up to 2077753344 bytes (1981 MB)
	JVM Flags: 3 total; -Xincgc -Xmx2048M -Xms2048M
	IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
	FML: MCP 9.38 Powered by Forge 13.20.0.2223 7 mods loaded, 7 mods active
	States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored
	UCHI	minecraft{1.11.2} [Minecraft] (minecraft.jar)
	UCHI	mcp{9.19} [Minecraft Coder Pack] (minecraft.jar)
	UCHI	FML{8.0.99.99} [Forge Mod Loader] (forgeSrc-1.11.2-13.20.0.2223.jar)
	UCHI	forge{13.20.0.2223} [Minecraft Forge] (forgeSrc-1.11.2-13.20.0.2223.jar)
	UCHE	servermod{ALPHA} [Sparky's Mod] (bin)
	UCHI	jei{4.1.1.208} [Just Enough Items] (jei_1.11-4.1.1.208.jar)
	UCHI	worldedit{6.1.6-SNAPSHOT} [WorldEdit] (worldedit-forge-mc1.11-6.1.6-SNAPSHOT-dist.jar)
	Loaded coremods (and transformers):
	Profiler Position: N/A (disabled)
	Is Modded: Definitely; Server brand changed to 'fml,forge'
	Type: Dedicated Server (map_server.txt)