Server won't start

[sonkashi]

Server won't start, i'm using launch.bat then it says press any key to continue and proceeds to not work. 

C:\Users\Cheenis\Desktop\BTeam_Server_v1.0.12a (2)>java.exe -Xmx3G -Xms2G -jar B
Team.jar nogui
Sep 08, 2015 9:09:41 PM net.minecraft.launchwrapper.LogWrapper log
INFO: Loading tweak class name cpw.mods.fml.common.launcher.FMLServerTweaker
Sep 08, 2015 9:09:41 PM net.minecraft.launchwrapper.LogWrapper log
INFO: Using primary tweak class name cpw.mods.fml.common.launcher.FMLServerTweak
er
Sep 08, 2015 9:09:41 PM net.minecraft.launchwrapper.LogWrapper log
INFO: Calling tweak class cpw.mods.fml.common.launcher.FMLServerTweaker
2015-09-08 21:09:41 [INFO] [ForgeModLoader] Forge Mod Loader version 6.4.49.965
for Minecraft 1.6.4 loading
2015-09-08 21:09:41 [INFO] [ForgeModLoader] Java is Java HotSpot(TM) 64-Bit Serv
er VM, version 1.8.0_60, running on Windows 7:amd64:6.1, installed at C:\Program
 Files\Java\jre1.8.0_60
2015-09-08 21:09:41 [WARNING] [ForgeModLoader] The coremod codechicken.core.laun
ch.DepLoader does not have a MCVersion annotation, it may cause issues with this
 version of Minecraft
2015-09-08 21:09:41 [WARNING] [ForgeModLoader] The coremod worldcore.asm.WCFMLLo
adingPlugin does not have a MCVersion annotation, it may cause issues with this
version of Minecraft
2015-09-08 21:09:41 [WARNING] [ForgeModLoader] The coremod biomesoplenty.asm.BOP
FMLLoadingPlugin does not have a MCVersion annotation, it may cause issues with
this version of Minecraft
2015-09-08 21:09:41 [INFO] [STDERR] Warning: version of ForgeMultipart-universal
-1.6.4-, 1.0.0.250 is newer than request 1.0.0.244
2015-09-08 21:09:41 [WARNING] [ForgeModLoader] The coremod codechicken.core.laun
ch.CodeChickenCorePlugin does not have a MCVersion annotation, it may cause issu
es with this version of Minecraft
2015-09-08 21:09:41 [WARNING] [ForgeModLoader] The coremod cofh.asm.LoadingPlugi
n does not have a MCVersion annotation, it may cause issues with this version of
 Minecraft
2015-09-08 21:09:41 [WARNING] [ForgeModLoader] The coremod invtweaks.forge.asm.F
MLPlugin does not have a MCVersion annotation, it may cause issues with this ver
sion of Minecraft
2015-09-08 21:09:41 [WARNING] [ForgeModLoader] The coremod micdoodle8.mods.micco
re.MicdoodlePlugin does not have a MCVersion annotation, it may cause issues wit
h this version of Minecraft
2015-09-08 21:09:41 [WARNING] [ForgeModLoader] The coremod codechicken.nei.asm.N
EICorePlugin does not have a MCVersion annotation, it may cause issues with this
 version of Minecraft
2015-09-08 21:09:41 [WARNING] [ForgeModLoader] The coremod openblocks.OpenBlocks
CorePlugin does not have a MCVersion annotation, it may cause issues with this v
ersion of Minecraft
2015-09-08 21:09:41 [WARNING] [ForgeModLoader] The coremod openeye.CorePlugin do
es not have a MCVersion annotation, it may cause issues with this version of Min
ecraft
2015-09-08 21:09:41 [WARNING] [ForgeModLoader] The coremod openmods.OpenModsCore
Plugin does not have a MCVersion annotation, it may cause issues with this versi
on of Minecraft
2015-09-08 21:09:41 [WARNING] [ForgeModLoader] The coremod codechicken.core.laun
ch.DepLoader does not have a MCVersion annotation, it may cause issues with this
 version of Minecraft
2015-09-08 21:09:41 [WARNING] [ForgeModLoader] The coremod mrtjp.projectred.comp
atibility.CompatibilityCorePlugin does not have a MCVersion annotation, it may c
ause issues with this version of Minecraft
2015-09-08 21:09:41 [WARNING] [ForgeModLoader] The coremod lumien.randomthings.T
ransformer.RTLoadingPlugin does not have a MCVersion annotation, it may cause is
sues with this version of Minecraft
2015-09-08 21:09:41 [WARNING] [ForgeModLoader] The coremod tconstruct.preloader.
TConstructLoaderContainer does not have a MCVersion annotation, it may cause iss
ues with this version of Minecraft
2015-09-08 21:09:41 [INFO] [TCon-Preloader] Scalpel. Suction. Lumber axe. CLEAR!
 *zap*
2015-09-08 21:09:41 [INFO] [TCon-Preloader] Constructing preloader (Modules: [tc
onstruct.preloader.AccessTransformers, tconstruct.preloader.ASMInterfaceRepair])

2015-09-08 21:09:41 [INFO] [TCon-Preloader] Found a properties file. Attempting
load...
2015-09-08 21:09:41 [INFO] [TCon-Preloader] Loaded properties successfully. Usin
g specified settings.
2015-09-08 21:09:41 [INFO] [Tropicraft-Core] Starting to load Tropicraft CoreMod
s!
2015-09-08 21:09:41 [INFO] [Tropicraft-Core] Constructing preloader (Modules: [t
ropicraft.asm.ModelBipedTransformer, tropicraft.asm.RenderPlayerTransformer])
2015-09-08 21:09:41 [INFO] [ForgeModLoader] Loading tweak class name cpw.mods.fm
l.common.launcher.FMLInjectionAndSortingTweaker
2015-09-08 21:09:41 [INFO] [ForgeModLoader] Loading tweak class name cpw.mods.fm
l.common.launcher.FMLDeobfTweaker
2015-09-08 21:09:41 [INFO] [ForgeModLoader] Calling tweak class cpw.mods.fml.com
mon.launcher.FMLInjectionAndSortingTweaker
2015-09-08 21:09:41 [SEVERE] [ForgeModLoader] Unable to launch
java.util.ConcurrentModificationException
        at java.util.ArrayList$Itr.checkForComodification(Unknown Source)
        at java.util.ArrayList$Itr.remove(Unknown Source)
        at net.minecraft.launchwrapper.Launch.launch(Launch.java:114)
        at net.minecraft.launchwrapper.Launch.main(Launch.java:27)
        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 cpw.mods.fml.relauncher.ServerLaunchWrapper.run(ServerLaunchWrapper.j
ava:48)
        at cpw.mods.fml.relauncher.ServerLaunchWrapper.main(ServerLaunchWrapper.
java:17)

C:\Users\Cheenis\Desktop\BTeam_Server_v1.0.12a (2)>pause
Press any key to continue . . .

code attached