Probleme chargement partie solo Minecraft Forge 1.7.2

Bonjour,

j'ai remarqué de temps en temps lorsque je charge une partie solo minecraft retourne tout seul au menu spontanément. J'ai donc regardé dans le log au moment au le problème survient voici ce qu'il affiche :

[17:48:14] [Server thread/INFO]: Starting integrated minecraft server version 1.7.2
[17:48:14] [Server thread/INFO]: Generating keypair
[17:48:14] [Server thread/INFO]: Injecting existing block and item data into this server instance
[17:48:14] [Server thread/INFO]: Applying holder lookups
[17:48:14] [Server thread/INFO]: Holder lookups applied
[17:48:14] [Server thread/INFO]: Loading dimension 0 (Nouveau monde) (net.minecraft.server.integrated.IntegratedServer@539bb01f)
[17:48:14] [Server thread/INFO]: Loading dimension 1 (Nouveau monde) (net.minecraft.server.integrated.IntegratedServer@539bb01f)
[17:48:14] [Server thread/INFO]: Loading dimension -1 (Nouveau monde) (net.minecraft.server.integrated.IntegratedServer@539bb01f)
[17:48:14] [Server thread/INFO]: Preparing start region for level 0
[17:48:16] [Netty Client IO #7/ERROR]: HandshakeMessageHandler exception
java.lang.RuntimeException: Timeout waiting for client thread to catch up!
at cpw.mods.fml.client.FMLClientHandler.waitForPlayClient(FMLClientHandler.java:843) ~[FMLClientHandler.class:?]
at cpw.mods.fml.common.FMLCommonHandler.waitForPlayClient(FMLCommonHandler.java:584) ~[FMLCommonHandler.class:?]
at cpw.mods.fml.common.network.handshake.NetworkDispatcher.clientListenForServerHandshake(NetworkDispatcher.java:154) ~[NetworkDispatcher.class:?]
at cpw.mods.fml.common.network.handshake.FMLHandshakeClientState$1.accept(FMLHandshakeClientState.java:33) ~[FMLHandshakeClientState$1.class:?]
at cpw.mods.fml.common.network.handshake.FMLHandshakeClientState$1.accept(FMLHandshakeClientState.java:27) ~[FMLHandshakeClientState$1.class:?]
at cpw.mods.fml.common.network.handshake.HandshakeMessageHandler.userEventTriggered(HandshakeMessageHandler.java:40) ~[HandshakeMessageHandler.class:?]
at io.netty.channel.DefaultChannelHandlerContext.invokeUserEventTriggered(DefaultChannelHandlerContext.java:308) [DefaultChannelHandlerContext.class:?]
at io.netty.channel.DefaultChannelHandlerContext.fireUserEventTriggered(DefaultChannelHandlerContext.java:294) [DefaultChannelHandlerContext.class:?]
at io.netty.channel.ChannelInboundHandlerAdapter.userEventTriggered(ChannelInboundHandlerAdapter.java:108) [ChannelInboundHandlerAdapter.class:?]
at io.netty.channel.DefaultChannelHandlerContext.invokeUserEventTriggered(DefaultChannelHandlerContext.java:308) [DefaultChannelHandlerContext.class:?]
at io.netty.channel.DefaultChannelHandlerContext.fireUserEventTriggered(DefaultChannelHandlerContext.java:294) [DefaultChannelHandlerContext.class:?]
at io.netty.channel.ChannelInboundHandlerAdapter.userEventTriggered(ChannelInboundHandlerAdapter.java:108) [ChannelInboundHandlerAdapter.class:?]
at io.netty.channel.DefaultChannelHandlerContext.invokeUserEventTriggered(DefaultChannelHandlerContext.java:308) [DefaultChannelHandlerContext.class:?]
at io.netty.channel.DefaultChannelHandlerContext.fireUserEventTriggered(DefaultChannelHandlerContext.java:294) [DefaultChannelHandlerContext.class:?]
at io.netty.channel.DefaultChannelPipeline.fireUserEventTriggered(DefaultChannelPipeline.java:779) [DefaultChannelPipeline.class:?]
at cpw.mods.fml.common.network.handshake.NetworkDispatcher.handlerAdded(NetworkDispatcher.java:132) [NetworkDispatcher.class:?]
at io.netty.channel.DefaultChannelPipeline.callHandlerAdded0(DefaultChannelPipeline.java:484) [DefaultChannelPipeline.class:?]
at io.netty.channel.DefaultChannelPipeline.callHandlerAdded(DefaultChannelPipeline.java:479) [DefaultChannelPipeline.class:?]
at io.netty.channel.DefaultChannelPipeline.addBefore0(DefaultChannelPipeline.java:178) [DefaultChannelPipeline.class:?]
at io.netty.channel.DefaultChannelPipeline.addBefore(DefaultChannelPipeline.java:163) [DefaultChannelPipeline.class:?]
at io.netty.channel.DefaultChannelPipeline.addBefore(DefaultChannelPipeline.java:153) [DefaultChannelPipeline.class:?]
at cpw.mods.fml.common.network.handshake.NetworkDispatcher.insertIntoChannel(NetworkDispatcher.java:119) [NetworkDispatcher.class:?]
at cpw.mods.fml.common.network.handshake.NetworkDispatcher.clientToServerHandshake(NetworkDispatcher.java:124) [NetworkDispatcher.class:?]
at cpw.mods.fml.common.network.internal.FMLNetworkHandler.fmlClientHandshake(FMLNetworkHandler.java:66) [FMLNetworkHandler.class:?]
at net.minecraft.client.network.NetHandlerLoginClient.func_147390_a(NetHandlerLoginClient.java:97) [bit.class:?]
at net.minecraft.network.login.server.S02PacketLoginSuccess.func_148833_a(SourceFile:36) [jg.class:?]
at net.minecraft.network.login.server.S02PacketLoginSuccess.func_148833_a(SourceFile:10) [jg.class:?]
at net.minecraft.network.NetworkManager.channelRead0(NetworkManager.java:98) [ef.class:?]
at net.minecraft.network.NetworkManager.channelRead0(NetworkManager.java:301) [ef.class:?]
at io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:98) [SimpleChannelInboundHandler.class:?]
at io.netty.channel.DefaultChannelHandlerContext.invokeChannelRead(DefaultChannelHandlerContext.java:337) [DefaultChannelHandlerContext.class:?]
at io.netty.channel.DefaultChannelHandlerContext.fireChannelRead(DefaultChannelHandlerContext.java:323) [DefaultChannelHandlerContext.class:?]
at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:785) [DefaultChannelPipeline.class:?]
at io.netty.channel.local.LocalChannel.finishPeerRead(LocalChannel.java:313) [LocalChannel.class:?]
at io.netty.channel.local.LocalChannel.access$400(LocalChannel.java:43) [LocalChannel.class:?]
at io.netty.channel.local.LocalChannel$6.run(LocalChannel.java:299) [LocalChannel$6.class:?]
at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:354) [SingleThreadEventExecutor.class:?]
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:348) [NioEventLoop.class:?]
at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:101) [SingleThreadEventExecutor$2.class:?]
at java.lang.Thread.run(Unknown Source) [?:1.8.0_11]
[17:48:16] [Netty Client IO #7/ERROR]: NetworkDispatcher exception
java.lang.RuntimeException: Timeout waiting for client thread to catch up!
at cpw.mods.fml.client.FMLClientHandler.waitForPlayClient(FMLClientHandler.java:843) ~[FMLClientHandler.class:?]
at cpw.mods.fml.common.FMLCommonHandler.waitForPlayClient(FMLCommonHandler.java:584) ~[FMLCommonHandler.class:?]
at cpw.mods.fml.common.network.handshake.NetworkDispatcher.clientListenForServerHandshake(NetworkDispatcher.java:154) [NetworkDispatcher.class:?]
at cpw.mods.fml.common.network.handshake.FMLHandshakeClientState$1.accept(FMLHandshakeClientState.java:33) ~[FMLHandshakeClientState$1.class:?]
at cpw.mods.fml.common.network.handshake.FMLHandshakeClientState$1.accept(FMLHandshakeClientState.java:27) ~[FMLHandshakeClientState$1.class:?]
at cpw.mods.fml.common.network.handshake.HandshakeMessageHandler.userEventTriggered(HandshakeMessageHandler.java:40) ~[HandshakeMessageHandler.class:?]
at io.netty.channel.DefaultChannelHandlerContext.invokeUserEventTriggered(DefaultChannelHandlerContext.java:308) ~[DefaultChannelHandlerContext.class:?]
at io.netty.channel.DefaultChannelHandlerContext.fireUserEventTriggered(DefaultChannelHandlerContext.java:294) ~[DefaultChannelHandlerContext.class:?]
at io.netty.channel.ChannelInboundHandlerAdapter.userEventTriggered(ChannelInboundHandlerAdapter.java:108) ~[ChannelInboundHandlerAdapter.class:?]
at io.netty.channel.DefaultChannelHandlerContext.invokeUserEventTriggered(DefaultChannelHandlerContext.java:308) ~[DefaultChannelHandlerContext.class:?]
at io.netty.channel.DefaultChannelHandlerContext.fireUserEventTriggered(DefaultChannelHandlerContext.java:294) ~[DefaultChannelHandlerContext.class:?]
at io.netty.channel.ChannelInboundHandlerAdapter.userEventTriggered(ChannelInboundHandlerAdapter.java:108) ~[ChannelInboundHandlerAdapter.class:?]
at io.netty.channel.DefaultChannelHandlerContext.invokeUserEventTriggered(DefaultChannelHandlerContext.java:308) [DefaultChannelHandlerContext.class:?]
at io.netty.channel.DefaultChannelHandlerContext.fireUserEventTriggered(DefaultChannelHandlerContext.java:294) [DefaultChannelHandlerContext.class:?]
at io.netty.channel.DefaultChannelPipeline.fireUserEventTriggered(DefaultChannelPipeline.java:779) ~[DefaultChannelPipeline.class:?]
at cpw.mods.fml.common.network.handshake.NetworkDispatcher.handlerAdded(NetworkDispatcher.java:132) ~[NetworkDispatcher.class:?]
at io.netty.channel.DefaultChannelPipeline.callHandlerAdded0(DefaultChannelPipeline.java:484) ~[DefaultChannelPipeline.class:?]
at io.netty.channel.DefaultChannelPipeline.callHandlerAdded(DefaultChannelPipeline.java:479) ~[DefaultChannelPipeline.class:?]
at io.netty.channel.DefaultChannelPipeline.addBefore0(DefaultChannelPipeline.java:178) ~[DefaultChannelPipeline.class:?]
at io.netty.channel.DefaultChannelPipeline.addBefore(DefaultChannelPipeline.java:163) ~[DefaultChannelPipeline.class:?]
at io.netty.channel.DefaultChannelPipeline.addBefore(DefaultChannelPipeline.java:153) ~[DefaultChannelPipeline.class:?]
at cpw.mods.fml.common.network.handshake.NetworkDispatcher.insertIntoChannel(NetworkDispatcher.java:119) ~[NetworkDispatcher.class:?]
at cpw.mods.fml.common.network.handshake.NetworkDispatcher.clientToServerHandshake(NetworkDispatcher.java:124) ~[NetworkDispatcher.class:?]
at cpw.mods.fml.common.network.internal.FMLNetworkHandler.fmlClientHandshake(FMLNetworkHandler.java:66) ~[FMLNetworkHandler.class:?]
at net.minecraft.client.network.NetHandlerLoginClient.func_147390_a(NetHandlerLoginClient.java:97) ~[bit.class:?]
at net.minecraft.network.login.server.S02PacketLoginSuccess.func_148833_a(SourceFile:36) ~[jg.class:?]
at net.minecraft.network.login.server.S02PacketLoginSuccess.func_148833_a(SourceFile:10) ~[jg.class:?]
at net.minecraft.network.NetworkManager.channelRead0(NetworkManager.java:98) ~[ef.class:?]
at net.minecraft.network.NetworkManager.channelRead0(NetworkManager.java:301) ~[ef.class:?]
at io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:98) ~[SimpleChannelInboundHandler.class:?]
at io.netty.channel.DefaultChannelHandlerContext.invokeChannelRead(DefaultChannelHandlerContext.java:337) [DefaultChannelHandlerContext.class:?]
at io.netty.channel.DefaultChannelHandlerContext.fireChannelRead(DefaultChannelHandlerContext.java:323) [DefaultChannelHandlerContext.class:?]
at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:785) [DefaultChannelPipeline.class:?]
at io.netty.channel.local.LocalChannel.finishPeerRead(LocalChannel.java:313) [LocalChannel.class:?]
at io.netty.channel.local.LocalChannel.access$400(LocalChannel.java:43) [LocalChannel.class:?]
at io.netty.channel.local.LocalChannel$6.run(LocalChannel.java:299) [LocalChannel$6.class:?]
at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:354) [SingleThreadEventExecutor.class:?]
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:348) [NioEventLoop.class:?]
at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:101) [SingleThreadEventExecutor$2.class:?]
at java.lang.Thread.run(Unknown Source) [?:1.8.0_11]
[17:48:16] [Server thread/INFO]: Player lost connection: TextComponent{text='Disconnected', siblings=[], style=Style{hasParent=false, color=null, bold=null, italic=null, underlined=null, obfuscated=null, clickEvent=null, hoverEvent=null}}
[17:48:16] [Server thread/INFO]: Player a quitt? le jeu
[17:48:16] [Server thread/INFO]: Stopping singleplayer server as player logged out
[17:48:16] [Server thread/INFO]: Stopping server
[17:48:16] [Server thread/INFO]: Saving players
[17:48:16] [Server thread/INFO]: Saving worlds
[17:48:16] [Server thread/INFO]: Saving chunks for level 'Nouveau monde'/Overworld
[17:48:17] [Server thread/INFO]: Saving chunks for level 'Nouveau monde'/Nether
[17:48:17] [Server thread/INFO]: Saving chunks for level 'Nouveau monde'/The End
[17:48:17] [Server thread/INFO]: Unloading dimension 0
[17:48:17] [Server thread/INFO]: Unloading dimension -1
[17:48:17] [Server thread/INFO]: Unloading dimension 1
[17:48:17] [Server thread/INFO]: Applying holder lookups
[17:48:17] [Server thread/INFO]: Holder lookups applied

je précise que j'ai forge 10.12.2.1121 d'installé ainsi que les mods Too Many Items, Custom NPCs et Flans mod.

Je voudrai donc savoir de 1. quelle est la cause de ce problème
et de 2. Comment le régler en gardant Forge et ces mods