Sponge Error

---- Minecraft Crash Report ----

WARNING: coremods are present:
  SpongeCoremod (spongeforge-1.8.9-1763-4.1.0-BETA-1219.jar)
  Java8CheckerCoremod (Pixelmon-1.8.9-4.2.3-universal.jar)
Contact their authors BEFORE contacting forge

// Why is it breaking :(

Time: 4/20/16 4:56 PM
Description: Exception in server tick loop

java.util.zip.ZipException: Not in GZIP format
	at java.util.zip.GZIPInputStream.readHeader(Unknown Source)
	at java.util.zip.GZIPInputStream.<init>(Unknown Source)
	at java.util.zip.GZIPInputStream.<init>(Unknown Source)
	at net.minecraft.nbt.CompressedStreamTools.func_74796_a(CompressedStreamTools.java:25)
	at net.minecraft.world.storage.SaveHandler.loadSpongeDatData(SaveHandler.java:122)
	at net.minecraft.world.storage.SaveHandler.handler$onLoadWorldInfoBeforeReturn0$0(SaveHandler.java:78)
	at net.minecraft.world.storage.SaveHandler.func_75757_d(SaveHandler.java:117)
	at net.minecraft.server.MinecraftServer.func_71247_a(MinecraftServer.java:393)
	at net.minecraft.server.dedicated.DedicatedServer.func_71197_b(DedicatedServer.java:254)
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:441)
	at java.lang.Thread.run(Unknown Source)


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

-- System Details --
Details:
	Minecraft Version: 1.8.9
	Operating System: Windows 10 (amd64) version 10.0
	Java Version: 1.8.0_91, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 2169884528 bytes (2069 MB) / 2694316032 bytes (2569 MB) up to 2863661056 bytes (2731 MB)
	JVM Flags: 2 total; -Xms2G -Xmx3G
	IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
	FML: MCP 9.19 Powered by Forge 11.15.1.1763 21 mods loaded, 21 mods active
	States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored
	UCHIJAA	mcp{9.19} [Minecraft Coder Pack] (minecraft.jar)
	UCHIJAA	FML{8.0.99.99} [Forge Mod Loader] (forge-1.8.9-XYZ-universal.jar)
	UCHIJAA	Forge{11.15.1.1763} [Minecraft Forge] (forge-1.8.9-XYZ-universal.jar)
	UCHIJAA	sponge{DEV} [SpongeForge] (spongeforge-1.8.9-1763-4.1.0-BETA-1219.jar)
	UCHIJAA	io.github.hsyyid.adminshop{1.7} [AdminShop] (AdminShop-1.7.jar)
	UCHIJAA	EnjinMinecraftPlugin{2.4.9-1.8} [EnjinMinecraftPlugin] (EnjinMinecraftForgePlugin-1.8.9.jar)
	UCHIJAA	io.github.hsyyid.essentialcmds{7.9f-2cbbf28} [EssentialCmds] (EssentialCmds-7.9f.jar)
	UCHIJAA	pixelmon{4.2.3} [Pixelmon] (Pixelmon-1.8.9-4.2.3-universal.jar)
	UCHIJAA	ivsevs{4.1.0} [IVsEVs] (Evs-Ivs-1.8.9-4.1.0-universal.jar)
	UCHIJAA	io.github.hsyyid.kits{1.7.3} [Kits] (Kits-1.7.3.jar)
	UCHIJAA	PayDay{0.4} [PayDay] (PayDay-0.4.jar)
	UCHIJAA	ninja.leaping.permissionsex{2.0-SNAPSHOT} [PermissionsEx] (PermissionsEx-Sponge.jar)
	UCHIJAA	pixelextras{2.1.1} [Pixel Extras] (PixelExtras-1.8.9-2.1.1-universal.jar)
	UCHIJAA	io.github.hsyyid.polis{2.4d} [Polis] (Polis-2.4d.jar)
	UCHIJAA	br.net.fabiozumbi12.redprotect{6.4.1} [RedProtect] (RedProtect_Sponge.jar)
	UCHIJAA	server_backup{1.0} [Server backup] (ServerBackup-1.2.jar)
	UCHIJAA	SpongeDiscord{1.0.0} [Sponge Discord] (Sponge-Discord-1.1.2-all.jar)
	UCHIJAA	totaleconomy{1.4.0} [Total Economy] (TotalEconomy-v1.4.0.jar)
	UCHIJAA	twentyticks{1.1.0} [Twenty Ticks] (twentyticks.jar)
	UCHIJAA	wondertrade{4.1.1} [Wonder Trade] (WonderTrade-1.8.9-4.2.0-universal.jar)
	UCHIJAA	worldedit{6.1.1} [WorldEdit] (worldedit-forge-mc1.8.9-6.1.1.jar)
	Loaded coremods (and transformers):
SpongeCoremod (spongeforge-1.8.9-1763-4.1.0-BETA-1219.jar)
  org.spongepowered.common.launch.transformer.SpongeSuperclassTransformer
Java8CheckerCoremod (Pixelmon-1.8.9-4.2.3-universal.jar)

	Profiler Position: N/A (disabled)
	Player Count: 0 / 20; []
	Is Modded: Definitely; Server brand changed to 'fml,forge,sponge'
	Type: Dedicated Server (map_server.txt)