[16:58:23] [Server thread/ERROR]: Encountered an unexpected exception
java.lang.RuntimeException: class com.pixelmonmod.pixelmon.blocks.tileEntities.T
ileEntityPokeChest is missing a mapping! This is a bug!
        at net.minecraft.tileentity.TileEntity.func_189516_d(TileEntity.java:81)
 ~[aqk.class:?]
        at net.minecraft.tileentity.TileEntity.func_189515_b(TileEntity.java:72)
 ~[aqk.class:?]
        at com.pixelmonmod.pixelmon.blocks.tileEntities.TileEntityPokeChest.func
_189515_b(TileEntityPokeChest.java:67) ~[TileEntityPokeChest.class:?]
        at net.minecraft.world.WorldServer.createSpongeBlockSnapshot(WorldServer
.java:1234) ~[ls.class:?]
        at net.minecraft.world.WorldServer.createSnapshot(WorldServer.java:900)
~[ls.class:?]
        at org.spongepowered.common.event.SpongeCommonEventFactory.callNotifyNei
ghborEvent(SpongeCommonEventFactory.java:225) ~[SpongeCommonEventFactory.class:1
.10.2-2011-5.0.0-BETA-1560]
        at net.minecraft.world.WorldServer.func_175685_c(WorldServer.java:1048)
~[ls.class:?]
        at net.minecraft.world.World.func_175722_b(World.java:421) ~[aid.class:?
]
        at org.spongepowered.common.event.tracking.CauseTracker.setBlockState(Ca
useTracker.java:343) ~[CauseTracker.class:1.10.2-2011-5.0.0-BETA-1560]
        at net.minecraft.world.WorldServer.func_180501_a(WorldServer.java:968) ~
[ls.class:?]
        at net.minecraft.world.World.func_175656_a(World.java:406) ~[aid.class:?
]
        at com.pixelmonmod.pixelmon.pokeloot.worldGen.WorldGenPokeChest.genBlock
s(WorldGenPokeChest.java:228) ~[WorldGenPokeChest.class:?]
        at com.pixelmonmod.pixelmon.pokeloot.worldGen.WorldGenPokeChest.generate
(WorldGenPokeChest.java:127) ~[WorldGenPokeChest.class:?]
        at net.minecraftforge.fml.common.registry.GameRegistry.redirect$onGenera
teWorld$0(GameRegistry.java:70) ~[GameRegistry.class:?]
        at net.minecraftforge.fml.common.registry.GameRegistry.generateWorld(Gam
eRegistry.java:120) ~[GameRegistry.class:?]
        at net.minecraft.world.chunk.Chunk.func_186034_a(Chunk.java:1001) ~[asv.
class:?]
        at net.minecraft.world.chunk.Chunk.func_186030_a(Chunk.java:969) ~[asv.c
lass:?]
        at net.minecraft.world.gen.ChunkProviderServer.func_186025_d(ChunkProvid
erServer.java:154) ~[lr.class:?]
        at net.minecraft.server.MinecraftServer.prepareSpawnArea(MinecraftServer
.java:376) ~[MinecraftServer.class:?]
        at net.minecraft.server.MinecraftServer.func_71222_d(MinecraftServer.jav
a:340) ~[MinecraftServer.class:?]
        at net.minecraft.server.MinecraftServer.func_71247_a(MinecraftServer.jav
a:328) ~[MinecraftServer.class:?]
        at net.minecraft.server.dedicated.DedicatedServer.func_71197_b(Dedicated
Server.java:266) ~[ld.class:?]
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:431) [M
inecraftServer.class:?]
        at java.lang.Thread.run(Unknown Source) [?:1.8.0_77]