Bonjour je vous contacte car je viens de créer un serveur et à chaque fois que j'y pose un bloc il crash. Assez problématique évidement puisque c'est le but de minecraft! Je vous envoie mon crash report et merci d'avance:

---- Minecraft Crash Report ----
// Sorry

Time: 29/06/17 16:05
Description: Exception in server tick loop

java.lang.NoClassDefFoundError: net/minecraft/client/Minecraft
at TMIConfig.isMultiplayer(TMIConfig.java:87)
at TMIForgeContainer.playerInteract(TMIForgeContainer.java:48)
at cpw.mods.fml.common.eventhandler.ASMEventHandler_1_TMIForgeContainer_playerInteract_PlayerInteractEvent.invoke(.dynamic)
at cpw.mods.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:54)
at cpw.mods.fml.common.eventhandler.EventBus.post(EventBus.java:140)
at net.minecraftforge.event.ForgeEventFactory.onPlayerInteract(ForgeEventFactory.java:100)
at net.minecraft.server.management.ItemInWorldManager.func_73078_a(ItemInWorldManager.java:353)
at net.minecraft.network.NetHandlerPlayServer.func_147346_a(NetHandlerPlayServer.java:556)
at net.minecraft.network.play.client.C08PacketPlayerBlockPlacement.func_148833_a(SourceFile:60)
at net.minecraft.network.play.client.C08PacketPlayerBlockPlacement.func_148833_a(SourceFile:9)
at net.minecraft.network.NetworkManager.func_74428_b(NetworkManager.java:212)
at net.minecraft.network.NetworkSystem.func_151269_c(NetworkSystem.java:165)
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:659)
at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:334)
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:547)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:427)
at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:685)
Caused by: java.lang.ClassNotFoundException: net.minecraft.client.Minecraft
at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:191)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
... 17 more
Caused by: java.lang.RuntimeException: Attempted to load class bao for invalid side SERVER
at cpw.mods.fml.common.asm.transformers.SideTransformer.transform(SideTransformer.java:50)
at net.minecraft.launchwrapper.LaunchClassLoader.runTransformers(LaunchClassLoader.java:279)
at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:176)
... 19 more

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

-- System Details --
Details:
Minecraft Version: 1.7.10
Operating System: Windows 7 (amd64) version 6.1
Java Version: 1.8.0_121, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 1976885440 bytes (1885 MB) / 2129657856 bytes (2031 MB) up to 2129657856 bytes (2031 MB)
JVM Flags: 2 total; -Xmx2G -Xms2G
AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
FML: MCP v9.05 FML v7.10.99.99 Minecraft Forge 10.13.4.1558 15 mods loaded, 15 mods active
States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored
UCHIJAAAA mcp{9.05} [Minecraft Coder Pack] (minecraft.jar)
UCHIJAAAA FML{7.10.99.99} [Forge Mod Loader] (forge-1.7.10-10.13.4.1558-1.7.10-universal.jar)
UCHIJAAAA Forge{10.13.4.1558} [Minecraft Forge] (forge-1.7.10-10.13.4.1558-1.7.10-universal.jar)
UCHIJAAAA TooManyItems{1.7.10} [TooManyItems] (minecraft.jar)
UCHIJAAAA betterrecords{1.7.10-1.1.9} [Better Records] (betterrecords-1.7.10-1.1.9.jar)
UCHIJAAAA easycoloredlights{1.7.2.} [Easy Colored Lights] (ColoredLightsCore[1.7.2.2].jar)
UCHIJAAAA MoCreatures{6.3.1} [DrZhark's Mo'Creatures Mod] (DrZharks MoCreatures Mod v6.3.1.zip)
UCHIJAAAA cfm{3.4.8} [§9MrCrayfish's Furniture Mod] (FURNITURES.jar)
UCHIJAAAA pda{1.7.10} [Plus d'aliments] (Plus daliments-1.7.10 v7.jar)
UCHIJAAAA punt{1.7.10-10.13.0-14.0} [Punt] (Small-Boats-Mod-1.7.10.jar)
UCHIJAAAA whitehall{1.7.10-10.13.0-14.0} [Whitehall] (Small-Boats-Mod-1.7.10.jar)
UCHIJAAAA hoy{1.7.10-10.13.0-14.0} [Hoy] (Small-Boats-Mod-1.7.10.jar)
UCHIJAAAA smallboats{1.7.10-10.13.0-14.0} [SmallBoats (base)] (Small-Boats-Mod-1.7.10.jar)
UCHIJAAAA stationsMod{1.7.10.5} [Stations Mod] (StationsMod-1.7.10.5.jar)
UCHIJAAAA tc{4.3.1_008} [Traincraft] (Traincraft-4.3.1_008.jar)
Profiler Position: N/A (disabled)
Vec3 Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
Player Count: 1 / 20; [EntityPlayerMP['VICJ40'/192, l='Union Islands', x=-164,44, y=81,00, z=767,28]]
Is Modded: Definitely; Server brand changed to 'fml,forge'
Type: Dedicated Server (map_server.txt)