Mon serveur crash

Voila, quand j'ouvre le serveur, ça me met ça :

[16:15:18] [main/INFO]: Loading tweak class name cpw.mods.fml.common.launcher.FMLServerTweaker
[16:15:18] [main/INFO]: Using primary tweak class name cpw.mods.fml.common.launcher.FMLServerTweaker
[16:15:18] [main/INFO]: Calling tweak class cpw.mods.fml.common.launcher.FMLServerTweaker
[16:15:18] [main/INFO]: Forge Mod Loader version 7.10.114.1388 for Minecraft 1.7.10 loading
[16:15:19] [main/INFO]: Java is Java HotSpot(TM) 64-Bit Server VM, version 1.8.0_77, running on Windows 10:amd64:10.0, installed at C:\Program Files\Java\jre1.8.0_77
[16:15:19] [main/INFO]: Loading tweak class name cpw.mods.fml.common.launcher.FMLInjectionAndSortingTweaker
[16:15:19] [main/INFO]: Loading tweak class name cpw.mods.fml.common.launcher.FMLDeobfTweaker
[16:15:19] [main/INFO]: Calling tweak class cpw.mods.fml.common.launcher.FMLInjectionAndSortingTweaker
[16:15:19] [main/INFO]: Calling tweak class cpw.mods.fml.common.launcher.FMLInjectionAndSortingTweaker
[16:15:19] [main/INFO]: Calling tweak class cpw.mods.fml.relauncher.CoreModManager$FMLPluginWrapper
[16:15:20] [main/INFO]: Calling tweak class cpw.mods.fml.relauncher.CoreModManager$FMLPluginWrapper
[16:15:20] [main/INFO]: Calling tweak class cpw.mods.fml.common.launcher.FMLDeobfTweaker
[16:15:20] [main/INFO]: Loading tweak class name cpw.mods.fml.common.launcher.TerminalTweaker
[16:15:20] [main/INFO]: Calling tweak class cpw.mods.fml.common.launcher.TerminalTweaker
[16:15:20] [main/INFO]: Launching wrapped minecraft {net.minecraft.server.MinecraftServer}
[16:15:24] [Server thread/INFO]: Starting minecraft server version 1.7.10
[16:15:24] [Server thread/INFO]: Attempting early MinecraftForge initialization
[16:15:24] [Server thread/INFO]: MinecraftForge v10.13.3.1388 Initialized
[16:15:24] [Server thread/INFO]: Replaced 183 ore recipies
[16:15:24] [Server thread/INFO]: Preloading CrashReport classes
[16:15:24] [Server thread/INFO]: net.minecraft.world.World$1
[16:15:24] [Server thread/INFO]: net.minecraft.world.World$2
[16:15:24] [Server thread/INFO]: net.minecraft.world.World$3
[16:15:24] [Server thread/INFO]: net.minecraft.world.World$4
[16:15:24] [Server thread/INFO]: net.minecraft.world.chunk.Chunk$1
[16:15:24] [Server thread/INFO]: net.minecraft.crash.CrashReportCategory$1
[16:15:24] [Server thread/INFO]: net.minecraft.crash.CrashReportCategory$2
[16:15:24] [Server thread/INFO]: net.minecraft.crash.CrashReportCategory$3
[16:15:24] [Server thread/INFO]: net.minecraft.entity.Entity$1
[16:15:24] [Server thread/INFO]: net.minecraft.entity.Entity$2
[16:15:24] [Server thread/INFO]: net.minecraft.entity.EntityTracker$1
[16:15:24] [Server thread/INFO]: net.minecraft.world.gen.layer.GenLayer$1
[16:15:24] [Server thread/INFO]: net.minecraft.world.gen.layer.GenLayer$2
[16:15:24] [Server thread/INFO]: net.minecraft.entity.player.InventoryPlayer$1
[16:15:24] [Server thread/INFO]: net.minecraft.world.gen.structure.MapGenStructure$1
[16:15:24] [Server thread/INFO]: net.minecraft.world.gen.structure.MapGenStructure$2
[16:15:24] [Server thread/INFO]: net.minecraft.world.gen.structure.MapGenStructure$3
[16:15:24] [Server thread/INFO]: net.minecraft.server.MinecraftServer$3
[16:15:24] [Server thread/INFO]: net.minecraft.server.MinecraftServer$4
[16:15:24] [Server thread/INFO]: net.minecraft.server.MinecraftServer$5
[16:15:24] [Server thread/INFO]: net.minecraft.nbt.NBTTagCompound$1
[16:15:24] [Server thread/INFO]: net.minecraft.nbt.NBTTagCompound$2
[16:15:24] [Server thread/INFO]: net.minecraft.network.NetHandlerPlayServer$2
[16:15:24] [Server thread/INFO]: net.minecraft.network.NetworkSystem$3
[16:15:24] [Server thread/INFO]: net.minecraft.tileentity.TileEntity$1
[16:15:24] [Server thread/INFO]: net.minecraft.tileentity.TileEntity$2
[16:15:24] [Server thread/INFO]: net.minecraft.tileentity.TileEntity$3
[16:15:24] [Server thread/INFO]: net.minecraft.world.storage.WorldInfo$1
[16:15:24] [Server thread/INFO]: net.minecraft.world.storage.WorldInfo$2
[16:15:24] [Server thread/INFO]: net.minecraft.world.storage.WorldInfo$3
[16:15:24] [Server thread/INFO]: net.minecraft.world.storage.WorldInfo$4
[16:15:24] [Server thread/INFO]: net.minecraft.world.storage.WorldInfo$5
[16:15:24] [Server thread/INFO]: net.minecraft.world.storage.WorldInfo$6
[16:15:24] [Server thread/INFO]: net.minecraft.world.storage.WorldInfo$7
[16:15:24] [Server thread/INFO]: net.minecraft.world.storage.WorldInfo$8
[16:15:24] [Server thread/INFO]: net.minecraft.world.storage.WorldInfo$9
[16:15:24] [Server thread/INFO]: net.minecraft.server.dedicated.DedicatedServer$3
[16:15:24] [Server thread/INFO]: net.minecraft.server.dedicated.DedicatedServer$4
[16:15:24] [Server thread/INFO]: Completed early MinecraftForge initialization
[16:15:24] [Server thread/INFO]: Searching C:\Users\Ferreira\Desktop\Serveurs\Moddé\1.7.10\Pika-Time\mods for mods
[16:15:25] [Server thread/INFO]: Attempting to reparse the mod container minedeco-1.7.2-1.0.2.jar
[16:15:25] [Server thread/INFO]: Forge Mod Loader has identified 11 mods to load
[16:15:26] [Server thread/INFO]: Attempting connection with missing mods [mcp, FML, Forge, BiblioCraft, craftguide, customnpcs, props, MineDeco, cfm, pixelmon, tts] at CLIENT
[16:15:26] [Server thread/INFO]: Attempting connection with missing mods [mcp, FML, Forge, BiblioCraft, craftguide, customnpcs, props, MineDeco, cfm, pixelmon, tts] at SERVER
[16:15:26] [Server thread/INFO]: Processing ObjectHolder annotations
[16:15:26] [Server thread/INFO]: Found 341 ObjectHolder annotations
[16:15:26] [Server thread/INFO]: Configured a dormant chunk cache size of 0
[16:15:27] [Server thread/WARN]: [16:15:27][FINE][noppes.npcs.LogWriter:71] Tue Mar 29 16:15:27 CEST 2016

[16:15:27] [Server thread/WARN]: [16:15:27][FINE][noppes.npcs.controllers.ScriptController:58] Script Engines Available:

[16:15:29] [Server thread/INFO]: [PIXELMON] Loading TM/HMs.
[16:15:30] [Server thread/INFO]: [PIXELMON] Extracting database.
[16:15:30] [Server thread/INFO]: [PIXELMON] Loading database driver.
[16:15:30] [Server thread/INFO]: [PIXELMON] Establishing connection.
[16:15:30] [Server thread/INFO]: [PIXELMON] Registering entity spawns.
[16:15:31] [Server thread/INFO]: Applying holder lookups
[16:15:31] [Server thread/INFO]: Holder lookups applied
[16:15:31] [Server thread/INFO]: Loading properties
[16:15:31] [Server thread/INFO]: Default game type: ADVENTURE
[16:15:32] [Server thread/INFO]: This server is running Cauldron-MCPC-Plus version git-Cauldron-Reloaded-1.7.10-1.1388.1.0 (MC: 1.7.10) (Implementing API version 1.7.10-R0.1-SNAPSHOT)
[16:15:32] [Server thread/WARN]: Failed to load white-list:
java.lang.NullPointerException
at net.minecraft.server.management.UserList.func_152679_g(UserList.java:218) ~[om.class:?]
at net.minecraft.server.dedicated.DedicatedPlayerList.func_72418_v(SourceFile:123) [ls.class:?]
at net.minecraft.server.dedicated.DedicatedPlayerList.<init>(SourceFile:30) [ls.class:?]
at net.minecraft.server.dedicated.DedicatedServer.func_71197_b(DedicatedServer.java:235) [lt.class:?]
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:620) [MinecraftServer.class:?]
at java.lang.Thread.run(Unknown Source) [?:1.8.0_77]
[16:15:32] [Server thread/INFO]: Server Ping Player Sample Count: 12
[16:15:32] [Server thread/INFO]: Using 4 threads for Netty based IO
[16:15:32] [Server thread/WARN]: =============================================================
[16:15:32] [Server thread/WARN]: MOD HAS DIRECT REFERENCE System.exit() THIS IS NOT ALLOWED REROUTING TO FML!
[16:15:32] [Server thread/WARN]: Offendor: org/spigotmc/RestartCommand.restart()V
[16:15:32] [Server thread/WARN]: Use FMLCommonHandler.exitJava instead
[16:15:32] [Server thread/WARN]: =============================================================
[16:15:32] [Server thread/INFO]: Generating keypair
[16:15:32] [Server thread/INFO]: Starting Minecraft server on *:25565
[16:15:32] [Server thread/WARN]: **** SERVER IS RUNNING IN OFFLINE/INSECURE MODE!
[16:15:32] [Server thread/WARN]: The server will make no attempt to authenticate usernames. Beware.
[16:15:32] [Server thread/WARN]: While this makes the game possible to play without internet access, it also opens up the ability for hackers to connect with any username they choose.
[16:15:32] [Server thread/WARN]: To change this, set "online-mode" to "true" in the server.properties file.
[16:15:32] [Server thread/ERROR]: Conversion failed, please try again later
net.minecraft.server.management.PreYggdrasilConverter$ConversionError: Could not convert file for Spigot
at net.minecraft.server.management.PreYggdrasilConverter$6.func_152743_a(SourceFile:331) ~[of.class:?]
at net.minecraft.server.management.PreYggdrasilConverter$6.onProfileLookupSucceeded(SourceFile:312) ~[of.class:?]
at net.minecraft.server.management.PreYggdrasilConverter.func_152717_a(SourceFile:63) ~[nz.class:?]
at net.minecraft.server.management.PreYggdrasilConverter.func_152723_a(SourceFile:349) [nz.class:?]
at net.minecraft.server.dedicated.DedicatedServer.func_152368_aE(DedicatedServer.java:660) [lt.class:?]
at net.minecraft.server.dedicated.DedicatedServer.func_71197_b(DedicatedServer.java:270) [lt.class:?]
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:620) [MinecraftServer.class:?]
at java.lang.Thread.run(Unknown Source) [?:1.8.0_77]
[16:15:32] [Server thread/WARN]: Encountered a problem while converting the player save files, retrying in a few seconds
[16:15:37] [Server thread/ERROR]: Conversion failed, please try again later
net.minecraft.server.management.PreYggdrasilConverter$ConversionError: Could not convert file for Spigot
at net.minecraft.server.management.PreYggdrasilConverter$6.func_152743_a(SourceFile:331) ~[of.class:?]
at net.minecraft.server.management.PreYggdrasilConverter$6.onProfileLookupSucceeded(SourceFile:312) ~[of.class:?]
at net.minecraft.server.management.PreYggdrasilConverter.func_152717_a(SourceFile:63) ~[nz.class:?]
at net.minecraft.server.management.PreYggdrasilConverter.func_152723_a(SourceFile:349) [nz.class:?]
at net.minecraft.server.dedicated.DedicatedServer.func_152368_aE(DedicatedServer.java:660) [lt.class:?]
at net.minecraft.server.dedicated.DedicatedServer.func_71197_b(DedicatedServer.java:270) [lt.class:?]
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:620) [MinecraftServer.class:?]
at java.lang.Thread.run(Unknown Source) [?:1.8.0_77]
[16:15:37] [Server thread/WARN]: Encountered a problem while converting the player save files, retrying in a few seconds
[16:15:42] [Server thread/ERROR]: Conversion failed, please try again later
net.minecraft.server.management.PreYggdrasilConverter$ConversionError: Could not convert file for Spigot
at net.minecraft.server.management.PreYggdrasilConverter$6.func_152743_a(SourceFile:331) ~[of.class:?]
at net.minecraft.server.management.PreYggdrasilConverter$6.onProfileLookupSucceeded(SourceFile:312) ~[of.class:?]
at net.minecraft.server.management.PreYggdrasilConverter.func_152717_a(SourceFile:63) ~[nz.class:?]
at net.minecraft.server.management.PreYggdrasilConverter.func_152723_a(SourceFile:349) [nz.class:?]
at net.minecraft.server.dedicated.DedicatedServer.func_152368_aE(DedicatedServer.java:660) [lt.class:?]
at net.minecraft.server.dedicated.DedicatedServer.func_71197_b(DedicatedServer.java:270) [lt.class:?]
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:620) [MinecraftServer.class:?]
at java.lang.Thread.run(Unknown Source) [?:1.8.0_77]
[16:15:42] [Server thread/WARN]: **** DETECTED OLD PLAYER FILES IN THE WORLD SAVE
[16:15:42] [Server thread/WARN]: **** THIS USUALLY HAPPENS WHEN THE AUTOMATIC CONVERSION FAILED IN SOME WAY
[16:15:42] [Server thread/WARN]: ** please restart the server and if the problem persists, remove the directory 'Spawn\players'
[16:15:42] [Server thread/WARN]: Can't revert to frozen GameData state without freezing first.
[16:15:42] [Server thread/INFO]: Applying holder lookups
[16:15:42] [Server thread/INFO]: Holder lookups applied
[16:15:42] [Server thread/INFO]: The state engine was in incorrect state POSTINITIALIZATION and forced into state SERVER_STOPPED. Errors may have been discarded.