Forge Server Crash

[20:35:30] [Server thread/ERROR]: Encountered an unexpected exception
java.lang.NoClassDefFoundError: net/minecraft/client/multiplayer/WorldClient
	at com.bbw2.moneyMod.blocks.TEBank.readFromNBT(TEBank.java:95) ~[TEBank.class:?]
	at net.minecraft.tileentity.TileEntity.createAndLoadEntity(TileEntity.java:135) ~[TileEntity.class:?]
	at net.minecraft.world.chunk.storage.AnvilChunkLoader.loadEntities(AnvilChunkLoader.java:525) ~[AnvilChunkLoader.class:?]
	at net.minecraftforge.common.chunkio.ChunkIOProvider.callStage2(ChunkIOProvider.java:41) ~[ChunkIOProvider.class:?]
	at net.minecraftforge.common.chunkio.ChunkIOProvider.callStage2(ChunkIOProvider.java:12) ~[ChunkIOProvider.class:?]
	at net.minecraftforge.common.util.AsynchronousExecutor.skipQueue(AsynchronousExecutor.java:344) ~[AsynchronousExecutor.class:?]
	at net.minecraftforge.common.util.AsynchronousExecutor.getSkipQueue(AsynchronousExecutor.java:302) ~[AsynchronousExecutor.class:?]
	at net.minecraftforge.common.chunkio.ChunkIOExecutor.syncChunkLoad(ChunkIOExecutor.java:12) ~[ChunkIOExecutor.class:?]
	at net.minecraft.world.gen.ChunkProviderServer.loadChunk(ChunkProviderServer.java:144) ~[ChunkProviderServer.class:?]
	at net.minecraft.world.gen.ChunkProviderServer.loadChunk(ChunkProviderServer.java:119) ~[ChunkProviderServer.class:?]
	at net.minecraft.server.MinecraftServer.initialWorldChunkLoad(MinecraftServer.java:305) ~[MinecraftServer.class:?]
	at net.minecraft.server.MinecraftServer.loadAllWorlds(MinecraftServer.java:275) ~[MinecraftServer.class:?]
	at net.minecraft.server.dedicated.DedicatedServer.startServer(DedicatedServer.java:261) ~[DedicatedServer.class:?]
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:445) [MinecraftServer.class:?]
	at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:752) [MinecraftServer$2.class:?]
Caused by: java.lang.ClassNotFoundException: net.minecraft.client.multiplayer.WorldClient
	at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:191) ~[launchwrapper-1.11.jar:?]
	at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.8.0_60]
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_60]
	... 15 more
Caused by: java.lang.RuntimeException: Attempted to load class net/minecraft/client/multiplayer/WorldClient for invalid side SERVER
	at cpw.mods.fml.common.asm.transformers.SideTransformer.transform(SideTransformer.java:50) ~[forgeSrc-1.7.10-10.13.2.1291.jar:?]
	at net.minecraft.launchwrapper.LaunchClassLoader.runTransformers(LaunchClassLoader.java:279) ~[launchwrapper-1.11.jar:?]
	at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:176) ~[launchwrapper-1.11.jar:?]
	at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.8.0_60]
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_60]
	... 15 more