---- Minecraft Crash Report ----

*** ATTENTION: detected classes with unsupported format ***
*** DO NOT SUBMIT THIS CRASH REPORT TO FORGE ***

Contact authors of the following mods: 
  backpack


WARNING: coremods are present:
  FldLoadingPlugin (FastLeafDecay-Mod-1.8.9.jar)
Contact their authors BEFORE contacting forge

// This is a token for 1 free hug. Redeem at your nearest Mojangsta: [~~HUG~~]

Time: 12/16/16 11:26 PM
Description: Exception in server tick loop

net.minecraftforge.fml.common.LoaderException: java.lang.ClassNotFoundException: de.eydamos.backpack.Backpack
	at net.minecraftforge.fml.common.LoadController.transition(LoadController.java:162)
	at net.minecraftforge.fml.common.Loader.loadMods(Loader.java:543)
	at net.minecraftforge.fml.server.FMLServerHandler.beginServerLoading(FMLServerHandler.java:87)
	at net.minecraftforge.fml.common.FMLCommonHandler.onServerStart(FMLCommonHandler.java:320)
	at net.minecraft.server.dedicated.DedicatedServer.func_71197_b(DedicatedServer.java:112)
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:441)
	at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.ClassNotFoundException: de.eydamos.backpack.Backpack
	at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:191)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at net.minecraftforge.fml.common.ModClassLoader.loadClass(ModClassLoader.java:65)
	at java.lang.Class.forName0(Native Method)
	at java.lang.Class.forName(Unknown Source)
	at net.minecraftforge.fml.common.FMLModContainer.constructMod(FMLModContainer.java:468)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at com.google.common.eventbus.EventSubscriber.handleEvent(EventSubscriber.java:74)
	at com.google.common.eventbus.SynchronizedEventSubscriber.handleEvent(SynchronizedEventSubscriber.java:47)
	at com.google.common.eventbus.EventBus.dispatch(EventBus.java:322)
	at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:304)
	at com.google.common.eventbus.EventBus.post(EventBus.java:275)
	at net.minecraftforge.fml.common.LoadController.sendEventToModContainer(LoadController.java:211)
	at net.minecraftforge.fml.common.LoadController.propogateStateMessage(LoadController.java:189)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at com.google.common.eventbus.EventSubscriber.handleEvent(EventSubscriber.java:74)
	at com.google.common.eventbus.SynchronizedEventSubscriber.handleEvent(SynchronizedEventSubscriber.java:47)
	at com.google.common.eventbus.EventBus.dispatch(EventBus.java:322)
	at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:304)
	at com.google.common.eventbus.EventBus.post(EventBus.java:275)
	at net.minecraftforge.fml.common.LoadController.distributeStateMessage(LoadController.java:118)
	at net.minecraftforge.fml.common.Loader.loadMods(Loader.java:512)
	... 5 more
Caused by: java.lang.UnsupportedClassVersionError: de/eydamos/backpack/Backpack : Unsupported major.minor version 52.0
	at java.lang.ClassLoader.defineClass1(Native Method)
	at java.lang.ClassLoader.defineClass(Unknown Source)
	at java.security.SecureClassLoader.defineClass(Unknown Source)
	at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:182)
	... 33 more


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: Linux (amd64) version 4.4.26-nitradoV3-MC-1000-nH-dP-d-a
	Java Version: 1.7.0_71, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 134224592 bytes (128 MB) / 259522560 bytes (247 MB) up to 1037959168 bytes (989 MB)
	JVM Flags: 7 total; -Xmx1024M -Xms256M -Xincgc -XX:+DisableExplicitGC -XX:-UseGCOverheadLimit -XX:SoftRefLRUPolicyMSPerMB=1000 -XX:MaxPermSize=384M
	IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
	FML: MCP 9.19 Powered by Forge 11.15.1.1794 8 mods loaded, 8 mods active
	States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored
	UC	mcp{9.19} [Minecraft Coder Pack] (minecraft.jar) 
	UC	FML{8.0.99.99} [Forge Mod Loader] (minecraft_server.jar) 
	UC	Forge{11.15.1.1794} [Minecraft Forge] (minecraft_server.jar) 
	UC	AutoSapling{1.0} [Auto Sapling] (Auto-Sapling-Mod-1.8.9.jar) 
	UE	backpack{3.0.1} [Backpack] (backpack-3.0.1-1.8.9.jar) 
	UC	bspkrsCore{7.01} [bspkrsCore] (BspkrsCore-1.8.jar) 
	UC	fastleafdecay{1.6} [Fast Leaf Decay] (FastLeafDecay-Mod-1.8.9.jar) 
	UC	MoCreatures{8.2.1} [DrZhark's Mo'Creatures Mod] (Mo'Creatures Mod-8.2.1.jar) 
	Loaded coremods (and transformers): 
FldLoadingPlugin (FastLeafDecay-Mod-1.8.9.jar)
  com.olafski.fastleafdecay.FldTransformer
	Profiler Position: N/A (disabled)
	Is Modded: Definitely; Server brand changed to 'fml,forge'
	Type: Dedicated Server (map_server.txt)