I need help for my Pixelmon server 
---- Minecraft Crash Report ----
WARNING: coremods are present:
SpongeCoremod (spongeforge-1.10.2-2254-5.2.0-BETA-2241.jar)
Contact their authors BEFORE contacting forge
// But it works on my machine.
Time: 24/03/17 14:54
Description: Exception ticking world
java.util.concurrent.RejectedExecutionException: Task net.minecraft.world.WorldServer$$Lambda$497/619465941@5d6b8f58 rejected from java.util.concurrent.ThreadPoolExecutor@6bec5bd4[Terminated, pool size = 0, active threads = 0, queued tasks = 0, completed tasks = 36106]
at java.util.concurrent.ThreadPoolExecutor$AbortPolicy.rejectedExecution(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.reject(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.execute(Unknown Source)
at java.util.concurrent.Executors$DelegatedExecutorService.execute(Unknown Source)
at net.minecraft.world.WorldServer.updateLightAsync(WorldServer.java:3848)
at net.minecraft.world.WorldServer.func_180500_c(WorldServer.java:3700)
at net.minecraft.world.World.func_175664_x(World.java:2776)
at net.minecraft.world.WorldServer.func_184162_i(WorldServer.java:360)
at net.minecraft.world.WorldServer.func_147456_g(WorldServer.java:1908)
at net.minecraft.world.WorldServer.func_72835_b(WorldServer.java:220)
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:698)
at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:387)
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:613)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:471)
at java.lang.Thread.run(Unknown Source)
A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------
-- Head --
Thread: Server thread
Stacktrace:
at java.util.concurrent.ThreadPoolExecutor$AbortPolicy.rejectedExecution(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.reject(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.execute(Unknown Source)
at java.util.concurrent.Executors$DelegatedExecutorService.execute(Unknown Source)
at net.minecraft.world.WorldServer.updateLightAsync(WorldServer.java:3848)
at net.minecraft.world.WorldServer.func_180500_c(WorldServer.java:3700)
at net.minecraft.world.World.func_175664_x(World.java:2776)
at net.minecraft.world.WorldServer.func_184162_i(WorldServer.java:360)
at net.minecraft.world.WorldServer.func_147456_g(WorldServer.java:1908)
at net.minecraft.world.WorldServer.func_72835_b(WorldServer.java:220)
-- Affected level --
Details:
Level name: world
All players: 2 total; [EntityPlayerMP['Darknight8151'/158, l='world', x=824,59, y=46,50, z=147,49], EntityPlayerMP['Schat'/3372, l='world', x=-48,30, y=27,00, z=-24,54]]
Chunk stats: ServerChunkCache: 1031 Drop: 0
Level seed: 227290
Level generator: ID 02 - largeBiomes, ver 0. Features enabled: true
Level generator options:
Level spawn location: World: (-40,41,-9), Chunk: (at 8,2,7 in -3,-1; contains blocks -48,0,-16 to -33,255,-1), Region: (-1,-1; contains chunks -32,-32 to -1,-1, blocks -512,0,-512 to -1,255,-1)
Level time: 282691897 game time, 8574618 day time
Level dimension: 0
Level storage version: 0x04ABD - Anvil
Level weather: Rain time: 1 (now: false), thunder time: 1 (now: false)
Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: false
Stacktrace:
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:698)
at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:387)
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:613)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:471)
at java.lang.Thread.run(Unknown Source)
-- System Details --
Details:
Minecraft Version: 1.10.2
Operating System: Windows 10 (amd64) version 10.0
Java Version: 1.8.0_121, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 23983626480 bytes (22872 MB) / 25752371200 bytes (24559 MB) up to 25752371200 bytes (24559 MB)
JVM Flags: 7 total; -Xmx24576M -Xms24576M -XX:+UseConcMarkSweepGC -XX:+UseParNewGC -XX:+CMSIncrementalPacing -XX:ParallelGCThreads=2 -XX:+AggressiveOpts
IntCache: cache: 0, tcache: 3, allocated: 12, tallocated: 94
FML: MCP 9.32 Powered by Forge 12.18.3.2254 17 mods loaded, 17 mods active
States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored
UCHIJAAAA mcp{9.19} [Minecraft Coder Pack] (minecraft.jar)
UCHIJAAAA FML{8.0.99.99} [Forge Mod Loader] (server.jar)
UCHIJAAAA Forge{12.18.3.2254} [Minecraft Forge] (server.jar)
UCHIJAAAA spongeapi{5.2.0-SNAPSHOT-a3257a0} [SpongeAPI] (minecraft.jar)
UCHIJAAAA sponge{1.10.2-2254-5.2.0-BETA-2241} [SpongeForge] (spongeforge-1.10.2-2254-5.2.0-BETA-2241.jar)
UCHIJAAAA customnpcs{1.10.2} [CustomNPCs] (CustomNPCs_1.10.2(17mar17).jar)
UCHIJAAAA PTRModelLib{1.0.0} [PTRModelLib] (Decocraft-2.3.6.1_1.10.2.jar)
UCHIJAAAA props{2.3.6.1} [Decocraft] (Decocraft-2.3.6.1_1.10.2.jar)
UCHIJAAAA io.github.hsyyid.essentialcmds{@project.informativeVersion@} [EssentialCmds] (EssentialCmds-1.10.2-8.1.14-universal.jar)
UCHIJAAAA everapi{0.1.4} [EverAPI] (EverAPI-S6.0.0-R0.1.4-BETA-8.jar)
UCHIJAAAA everessentials{0.1.4} [EverEssentials] (EverEssentials-S6.0.0-R0.1.4-BETA-8.jar)
UCHIJAAAA everpermissions{0.1.4} [EverPermissions] (EverPermissions-S6.0.0-R0.1.4-BETA-8.jar)
UCHIJAAAA pixelmon{5.0.1} [Pixelmon] (Pixelmon-1.10.2-5.0.1-universal.jar)
UCHIJAAAA pixelgym{1.2} [PixelmonGym] (PixelmonGymSpongeV1.3.jar)
UCHIJAAAA redprotect{7.0.0} [RedProtect] (RedProtect-Sponge-7.0.0-b3.jar)
UCHIJAAAA vending{1.4.3} [Vending] (vending-1.10.2-1.4.3.jar)
UCHIJAAAA worldedit{6.1.5-SNAPSHOT} [WorldEdit] (worldedit-sponge-mc1.10.2-6.1.5-SNAPSHOT-dist.jar)
Loaded coremods (and transformers):
SpongeCoremod (spongeforge-1.10.2-2254-5.2.0-BETA-2241.jar)
org.spongepowered.common.launch.transformer.SpongeSuperclassTransformer
Profiler Position: N/A (disabled)
Player Count: 3 / 20; [EntityPlayerMP['Darknight8151'/158, l='world', x=824,59, y=46,50, z=147,49], EntityPlayerMP['Schat'/3372, l='world', x=-48,30, y=27,00, z=-24,54], EntityPlayerMP['110Team'/2690, l='survival', x=399,94, y=65,00, z=-1505,44]]
Is Modded: Definitely; Server brand changed to 'fml,forge,sponge'
Type: Dedicated Server (map_server.txt)