probleme (crash) serveur, cherche conseil

Bonjour, moi et un amis avons un serveur utilisant un modpack nommé MOONQUEST , via Technic luncher...
(version 1.6.4)


Cependant, depuis environ quelques jours, impossible de jouer plus que quelques minutes sans que celui-ci crash, nous donnant ce rapport de crash, quelqu'un s'y conaissant plus que nous pourrais nous dire ce qui cause ce problème ? merci d'avance :)

---- Minecraft Crash Report ----
// Shall we play a game?

Time: 14-04-24 18:15
Description: Exception in server tick loop

java.util.ConcurrentModificationException
at java.util.HashMap$HashIterator.nextNode(Unknown Source)
at java.util.HashMap$KeyIterator.next(Unknown Source)
at ic2.core.energy.EnergyNetLocal.onTickEnd(EnergyNetLocal.java:263)
at ic2.core.energy.EnergyNetGlobal.onTickEnd(EnergyNetGlobal.java:51)
at ic2.core.IC2.tickEnd(IC2.java:1777)
at cpw.mods.fml.common.SingleIntervalHandler.tickEnd(SingleIntervalHandler.java:34)
at cpw.mods.fml.common.FMLCommonHandler.tickEnd(FMLCommonHandler.java:141)
at cpw.mods.fml.common.FMLCommonHandler.onPostWorldTick(FMLCommonHandler.java:282)
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:677)
at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:276)
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:587)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:484)
at net.minecraft.server.ThreadMinecraftServer.run(SourceFile:583)


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

-- System Details --
Details:
Minecraft Version: 1.6.4
Operating System: Windows 7 (amd64) version 6.1
Java Version: 1.8.0_05, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 585071080 bytes (557 MB) / 1039663104 bytes (991 MB) up to 1864368128 bytes (1778 MB)
JVM Flags: 1 total; -Xmx2000M
AABB Pool Size: 2881 (161336 bytes; 0 MB) allocated, 2509 (140504 bytes; 0 MB) used
Suspicious classes: FML and Forge are installed
IntCache: cache: 0, tcache: 0, allocated: 4, tallocated: 58
FML: MCP v8.11 FML v6.4.45.953 Minecraft Forge 9.11.1.953 82 mods loaded, 82 mods active
mcp{8.09} [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
FML{6.4.45.953} [Forge Mod Loader] (minecraft_server.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Forge{9.11.1.953} [Minecraft Forge] (minecraft_server.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
CodeChickenCore{0.9.0.9} [CodeChicken Core] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Micdoodlecore{} [Micdoodle8 Core] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
PowerCrystalsCore{1.1.8} [PowerCrystals Core] (PowerCrystals-Core-1.6.4.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
TConstruct-Preloader{0.0.1} [Tinkers Corestruct] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
ChickenShed{1.1.2} [Chicken Shed] ([1.6.4+] ChickenShed (v1.1.2).zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
bspkrsCore{v5.0(1.6.4)} [bspkrsCore] ([1.6.4]bspkrsCorev5.0.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
mod_bspkrsCore{v5.0(1.6.4)} [bspkrsCore] ([1.6.4]bspkrsCorev5.0.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
TreeCapitator{Forge 1.6.4.r06} [Treecapitator] ([1.6.4]TreeCapitator.Forge.1.6.4.r06.Universal.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
cfm{3.2.9.2} [§6MrCrayfish's Furniture Mod] ([Forge]FurnitureModv3.2.9.2(1.6.4).zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
ArchimedesShipsMod{1.6.2 v1.4.4} [Archimedes' Ships] (Archimedes-Ships-Mod-1.6.4.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Artifice{1.6.4R1.1.3} [Artifice] (Artifice-1.1.3-242.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
ArtificeCompat|EE3{1.6.4R1.1.3} [Artifice Compat: EE3] (Artifice-1.1.3-242.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
BiomesOPlenty{1.2.1} [Biomes O' Plenty] (BiomesOPlenty-universal-1.6.4-1.2.1.416.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
CoFHCore{2.0.0.2} [CoFH Core] (CoFHCore-2.0.0.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
BuildCraft|Core{4.2.2} [BuildCraft] (buildcraft-A-1.6.4-4.2.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
UniversalElectricity{3.1.0} [Universal Electricity] (Universal-Electricity-3.1.0.78-core.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
ForgeMultipart{1.0.0.244} [Forge Multipart] (ForgeMultipart-universal-1.6.4-1.0.0.244.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
ThermalExpansion{3.0.0.2} [Thermal Expansion] (ThermalExpansion-3.0.0.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
IC2{2.0.384-experimental} [IndustrialCraft 2] (industrialcraft-2_2.0.384-experimental.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Forestry{2.3.1.1} [Forestry for Minecraft] (forestry-A-2.3.1.1.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
ArtificeCompat|Forestry{1.6.4R1.1.3} [Artifice Compat: Forestry] (Artifice-1.1.3-242.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
ArtificeCompat|Vanilla{1.6.4R1.1.3} [Artifice Compat: Vanilla] (Artifice-1.1.3-242.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
ArtificeCompat|MFR{1.6.4R1.1.3} [Artifice Compat: MFR] (Artifice-1.1.3-242.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
ArtificeCompat|Buildcraft{1.6.4R1.1.3} [Artifice Compat: Buildcraft] (Artifice-1.1.3-242.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
ArtificeCompat|ForgeMicroblock{1.6.4R1.1.3} [Artifice Compat: ForgeMicroblock] (Artifice-1.1.3-242.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
BuildCraft|Energy{4.2.2} [BC Energy] (buildcraft-A-1.6.4-4.2.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Thaumcraft{4.1.0b} [Thaumcraft] (Thaumcraft4.1.0b.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
ArtificeCompat|Thaumcraft{1.6.4R1.1.3} [Artifice Compat: Thaumcraft] (Artifice-1.1.3-242.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
CalclaviaCore{1.2.0} [CalclaviaCore] (Calclavia-Core-1.2.0.317-universal.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
AtomicScience{1.2.0} [Atomic Science] (Atomic Science-1.2.0.99-universal.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
BuildCraft|Builders{4.2.2} [BC Builders] (buildcraft-A-1.6.4-4.2.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
BuildCraft|Factory{4.2.2} [BC Factory] (buildcraft-A-1.6.4-4.2.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
BuildCraft|Transport{4.2.2} [BC Transport] (buildcraft-A-1.6.4-4.2.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
BuildCraft|Silicon{4.2.2} [BC Silicon] (buildcraft-A-1.6.4-4.2.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
BCTools{1.4-a-17} [Buildcraft Tools] (bcTools-v1.4-a-17.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
BiblioCraft{1.5.5} [BiblioCraft] (BiblioCraft[v1.5.5].zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
BinnieCore{1.8.0} [Binnie Core] (binnie-mods-1.8.0.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
ExtraBees{1.8.0} [Extra Bees] (binnie-mods-1.8.0.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
ExtraTrees{1.8.0} [Extra Trees] (binnie-mods-1.8.0.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
CoFHLoot{2.0.0.2} [CoFH Loot] (CoFHCore-2.0.0.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
CoFHMasquerade{2.0.0.2} [CoFH Masquerade] (CoFHCore-2.0.0.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
CoFHSocial{2.0.0.2} [CoFH Social] (CoFHCore-2.0.0.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
CoFHWorld{2.0.0.2} [CoFH World] (CoFHCore-2.0.0.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
CompactSolars{4.4.14.183} [Compact Solar Arrays] (CompactSolars-Addon-1.6.4.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
CowboyHat{1.0} [Cowboy Hat] (Cowboy Hat Mod 1.0.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
customrecipes{4.52} [Custom Recipes] (CustomRecipes-4.5-5.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
eplus{1.16.5b} [Enchanting Plus] (EnchantingPlus-1.16.5.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
EnderStorage{1.4.3.6} [EnderStorage] (EnderStorage 1.4.3.6.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
NBTEdit{1.6.4.0} [In-game NBTEdit] (Forge_NBTEditv1.6.4.0.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
GalacticraftCore{2.0.11} [Galacticraft Core] (Galacticraft-1.6.4-2.0.11.978.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
GalacticraftMars{2.0.11} [Galacticraft Mars] (Galacticraft-Planets-1.6.4-2.0.11.978.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Hats{2.1.5} [Hats] (Hats2.1.5.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
HatStand{2.1.0} [HatStand] (HatStand2.1.0.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
IronChest{5.4.1.614} [Iron Chest] (Iron-Chests-Mod-1.6.4.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Mekanism{5.7.0} [Mekanism] (Mekanism-v5.7.0.11.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
MekanismGenerators{5.7.0} [MekanismGenerators] (MekanismGenerators-v5.7.0.11.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
MekanismInduction{5.7.0} [MekanismInduction] (MekanismInduction-v5.7.0.11.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
MekanismTools{5.7.0} [MekanismTools] (MekanismTools-v5.7.0.11.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Mystcraft{0.10.12.01} [Mystcraft] (mystcraft-uni-1.6.4-0.10.12.01.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
NetherOres{1.6.2R2.2.0} [Nether Ores] (Nether-Ores-Mod-1.6.4.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
iChunUtil{2.4.0} [iChunUtil] (util^iChunUtil2.4.0.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
PortalGun{2.0.2} [PortalGun] (PortalGun2.0.2.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
ProjRed|Core{4.3.7.32} [ProjectRed] (ProjectRedBase-1.6.4-4.3.7.32.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
ProjRed|Transmission{4.3.7.32} [ProjectRed-Transmission] (ProjectRedIntegration-1.6.4-4.3.7.32.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
ProjRed|Transportation{4.3.7.32} [ProjectRed-Transportation] (ProjectRedMechanical-BETA-1.6.4-4.3.7.32.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
ProjRed|Exploration{4.3.7.32} [ProjectRed-Exploration] (ProjectRedWorld-1.6.4-4.3.7.32.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
TConstruct{1.6.X_1.5.4dev} [Tinkers' Construct] (TConstruct_mc1.6.4_1.5.4.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
ProjRed|Compatibility{4.3.7.32} [ProjectRed-Compatibility] (ProjectRedCompat-1.6.4-4.3.7.32.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
ProjRed|Integration{4.3.7.32} [ProjectRed-Integration] (ProjectRedIntegration-1.6.4-4.3.7.32.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
ProjRed|Illumination{4.3.7.32} [ProjectRed-Illumination] (ProjectRedLighting-1.6.4-4.3.7.32.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
ProjRed|Expansion{4.3.7.32} [ProjectRed-Expansion] (ProjectRedMechanical-BETA-1.6.4-4.3.7.32.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
QuarryPlus{1.5.5.3} [QuarryPlus] (QuarryPlus-1.6.4-1.5.5.3.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
SGCraft{0.7.3} [SG Craft] (SGCraft-0.7.3-mc1.6.4.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
SS2{2 (build 2)} [Soul Shards 2] (SoulShards-2.0.15-universal-srg.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
TF2Dispenser{1.6.4} [TF2 Dispenser] (TF2_Dispenser_1.6.4a.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
TF2Sentry{1.6.4} [TF2 Sentry] (TF2_Sentry_1.6.4a.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
TF2Teleporter{1.6.4} [TF2 Teleporter] (TF2_Teleporter_1.6.4a.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
McMultipart{1.0.0.244} [Minecraft Multipart Plugin] (ForgeMultipart-universal-1.6.4-1.0.0.244.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
ForgeMicroblock{1.0.0.244} [Forge Microblocks] (ForgeMultipart-universal-1.6.4-1.0.0.244.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
TConstruct Environment: Sane and ready for action. Bugs may be reported.
Profiler Position: N/A (disabled)
Vec3 Pool Size: 1914 (107184 bytes; 0 MB) allocated, 1556 (87136 bytes; 0 MB) used
Player Count: 1 / 60; [GCCorePlayerMP['Atlante'/980, l='world', x=154,65, y=60,00, z=381,27]]
Is Modded: Definitely; Server brand changed to 'fml,forge'
Type: Dedicated Server (map_server.txt)