Description: Exception in server tick loop

java.lang.NoClassDefFoundError: net/minecraft/client/Minecraft
	at com.mrcrayfish.furniture.proxy.CommonProxy.isDedicatedServer(CommonProxy.java:50)
	at com.mrcrayfish.furniture.handler.SyncEvent.onPlayerLogin(SyncEvent.java:33)
	at net.minecraftforge.fml.common.eventhandler.ASMEventHandler_8_SyncEvent_onPlayerLogin_PlayerLoggedInEvent.invoke(.dynamic)
	at net.minecraftforge.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:90)
	at net.minecraftforge.fml.common.eventhandler.EventBus.post(EventBus.java:185)
	at net.minecraftforge.fml.common.FMLCommonHandler.firePlayerLoggedIn(FMLCommonHandler.java:568)
	at net.minecraft.server.management.PlayerList.initializeConnectionToPlayer(PlayerList.java:214)
	at net.minecraftforge.fml.common.network.handshake.NetworkDispatcher.completeServerSideConnection(NetworkDispatcher.java:262)
	at net.minecraftforge.fml.common.network.handshake.NetworkDispatcher.access$100(NetworkDispatcher.java:73)
	at net.minecraftforge.fml.common.network.handshake.NetworkDispatcher$1.func_73660_a(NetworkDispatcher.java:211)
	at net.minecraft.network.NetworkManager.func_74428_b(NetworkManager.java:287)
	at net.minecraft.network.NetworkSystem.func_151269_c(NetworkSystem.java:180)
	at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:743)
	at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:384)
	at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:624)
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:482)
	at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.ClassNotFoundException: net.minecraft.client.Minecraft
	at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:191)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
	... 17 more
Caused by: net.minecraftforge.fml.common.asm.ASMTransformerWrapper$TransformerException: Exception in class transformer net.minecraftforge.fml.common.asm.transformers.SideTransformer@ccb4b1b from coremod FMLCorePlugin
	at net.minecraftforge.fml.common.asm.ASMTransformerWrapper$TransformerWrapper.transform(ASMTransformerWrapper.java:257)
	at net.minecraft.launchwrapper.LaunchClassLoader.runTransformers(LaunchClassLoader.java:279)
	at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:176)
	... 19 more
Caused by: java.lang.RuntimeException: Attempted to load class bes for invalid side SERVER
	at net.minecraftforge.fml.common.asm.transformers.SideTransformer.transform(SideTransformer.java:56)
	at net.minecraftforge.fml.common.asm.ASMTransformerWrapper$TransformerWrapper.transform(ASMTransformerWrapper.java:253)
	... 21 more

-- System Details --
Details:
	Minecraft Version: 1.11.2
	Operating System: Linux (amd64) version 3.10.0-327.36.1.el7.x86_64
	Java Version: 1.8.0_102, Oracle Corporation
	Java VM Version: OpenJDK 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 627875328 bytes (598 MB) / 959971328 bytes (915 MB) up to 959971328 bytes (915 MB)
	JVM Flags: 2 total; -Xmx1024M -Xms1024M
	IntCache: cache: 0, tcache: 0, allocated: 12, tallocated: 94
	FML: MCP 9.38 Powered by Forge 13.20.0.2228 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
	UCHIJAAAA	minecraft{1.11.2} [Minecraft] (minecraft.jar) 
	UCHIJAAAA	mcp{9.19} [Minecraft Coder Pack] (minecraft.jar) 
	UCHIJAAAA	FML{8.0.99.99} [Forge Mod Loader] (forge-1.11.2-13.20.0.2228-universal.jar) 
	UCHIJAAAA	forge{13.20.0.2228} [Minecraft Forge] (forge-1.11.2-13.20.0.2228-universal.jar) 
	UCHIJAAAA	cfm{4.1.1} [MrCrayfish's Furniture Mod] (cfm-4.1.1-mc1.11.2.jar) 
	UCHIJAAAA	mercurius_updater{1.0} [mercurius_updater] (MercuriusUpdater-1.11.jar) 
	Loaded coremods (and transformers): 
	Profiler Position: N/A (disabled)
	Player Count: 1 / 20; [EntityPlayerMP['***'/138, l='world', x=-59.99, y=67.00, z=10.39]]
	Is Modded: Definitely; Server brand changed to 'fml,forge'
	Type: Dedicated Server (map_server.txt***