Sever crash when mods added

My server (sponge) was working fine until i attempted to upload a mod (two - DrZhark’s Mo’Creatures Mod-8.0.0.devA and CustomMobSpawner 3.4.0) and then the server crashes at the last minute
PLease Help

Crash Report:

---- Minecraft Crash Report ----
// Surprise! Haha. Well, this is awkward.

Time: 11/09/15 6:19 PM
Description: Exception in server tick loop

net.minecraftforge.fml.common.LoaderException: java.lang.reflect.InvocationTargetException
at net.minecraftforge.fml.common.registry.GameRegistry.registerBlock(GameRegistry.java:231)
at net.minecraftforge.fml.common.registry.GameRegistry.registerBlock(GameRegistry.java:188)
at drzhark.mocreatures.block.MoCBlock.(MoCBlock.java:30)
at drzhark.mocreatures.block.MoCBlockRock.(MoCBlockRock.java:16)
at drzhark.mocreatures.MoCreatures.InitItems(MoCreatures.java:838)
at drzhark.mocreatures.MoCreatures.load(MoCreatures.java:362)
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:537)
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:212)
at net.minecraftforge.fml.common.LoadController.propogateStateMessage(LoadController.java:190)
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:119)
at net.minecraftforge.fml.common.Loader.initializeMods(Loader.java:731)
at net.minecraftforge.fml.server.FMLServerHandler.finishServerLoading(FMLServerHandler.java:97)
at net.minecraftforge.fml.common.FMLCommonHandler.onServerStarted(FMLCommonHandler.java:360)
at net.minecraft.server.dedicated.DedicatedServer.func_71197_b(DedicatedServer.java:210)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:438)
at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at net.minecraftforge.fml.common.registry.GameRegistry.registerBlock(GameRegistry.java:217)
… 37 more
Caused by: java.lang.NoClassDefFoundError: net/minecraft/client/resources/model/ModelBakery
at drzhark.mocreatures.block.MultiItemBlock.(MultiItemBlock.java:30)
… 42 more
Caused by: java.lang.ClassNotFoundException: net.minecraft.client.resources.model.ModelBakery
at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:188)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
… 43 more
Caused by: net.minecraftforge.fml.common.asm.ASMTransformerWrapper$TransformerException: Exception in class transformer net.minecraftforge.fml.common.asm.transformers.SideTransformer@4da855dd from coremod FMLCorePlugin
at net.minecraftforge.fml.common.asm.ASMTransformerWrapper$TransformerWrapper.transform(ASMTransformerWrapper.java:234)
at net.minecraft.launchwrapper.LaunchClassLoader.runTransformers(LaunchClassLoader.java:276)
at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:174)
… 45 more
Caused by: java.lang.RuntimeException: Attempted to load class cxh for invalid side SERVER
at net.minecraftforge.fml.common.asm.transformers.SideTransformer.transform(SideTransformer.java:49)
at net.minecraftforge.fml.common.asm.ASMTransformerWrapper$TransformerWrapper.transform(ASMTransformerWrapper.java:230)
… 47 more

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

– System Details –
Details:
Minecraft Version: 1.8
Operating System: Windows 10 (amd64) version 10.0
Java Version: 1.8.0_60, Oracle Corporation
Java VM Version: Java HotSpot™ 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 1182420816 bytes (1127 MB) / 1797259264 bytes (1714 MB) up to 9544663040 bytes (9102 MB)
JVM Flags: 2 total; -Xms1G -Xmx10G
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
FML: MCP v9.10 FML v8.0.99.99 Minecraft Forge 11.14.3.1499 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
UCHI mcp{9.05} [Minecraft Coder Pack] (minecraft.jar)
UCHI FML{8.0.99.99} [Forge Mod Loader] (forge-1.8-11.14.3.1499.jar)
UCHI Forge{11.14.3.1499} [Minecraft Forge] (forge-1.8-11.14.3.1499.jar)
UCHI Sponge{1.8-1499-2.1DEV-613} [SpongeForge] (minecraft.jar)
UCHI CustomSpawner{3.4.0} [DrZhark’s CustomSpawner] (CustomMobSpawner 3.4.0.jar)
UCHE MoCreatures{8.0.0.devA} [DrZhark’s Mo’Creatures Mod] (DrZhark’s Mo’Creatures Mod-8.0.0.devA.jar)
Loaded coremods (and transformers):
SpongeCoremod (unknown)

Profiler Position: N/A (disabled)
Is Modded: Definitely; Server brand changed to 'fml,forge'
Type: Dedicated Server (map_server.txt)

Mo Creatures does not support server. Wait update mod.

Quote MineCraftForum:
(test/dev version only - for Minecraft 1.8) * This version is not Server ready yet
requires.

O thanks, that weird tho cause it worked fine on 1.7.10 Cauldron??? or is it just the 1.8 version??

This development version.