WARN]: net.minecraft.server.v1_7_R4.ExceptionWorldConflict: The save for world located at ./world is being accessed from another location, aborting
[11:52:08 WARN]:        at net.minecraft.server.v1_7_R4.WorldNBTStorage.checkSession(WorldNBTStorage.java:72)
[11:52:08 WARN]:        at net.minecraft.server.v1_7_R4.World.G(World.java:3010)
[11:52:08 WARN]:        at net.minecraft.server.v1_7_R4.ChunkRegionLoader.a(ChunkRegionLoader.java:130)
[11:52:08 WARN]:        at net.minecraft.server.v1_7_R4.ChunkProviderServer.saveChunk(ChunkProviderServer.java:269)
[11:52:08 WARN]:        at net.minecraft.server.v1_7_R4.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:363)
[11:52:08 WARN]:        at net.minecraft.server.v1_7_R4.WorldServer.doTick(WorldServer.java:192)
[11:52:08 WARN]:        at net.minecraft.server.v1_7_R4.MinecraftServer.v(MinecraftServer.java:750)
[11:52:08 WARN]:        at net.minecraft.server.v1_7_R4.DedicatedServer.v(DedicatedServer.java:307)
[11:52:08 WARN]:        at net.minecraft.server.v1_7_R4.MinecraftServer.u(MinecraftServer.java:643)
[11:52:08 WARN]:        at net.minecraft.server.v1_7_R4.MinecraftServer.run(MinecraftServer.java:549)
[11:52:08 WARN]:        at net.minecraft.server.v1_7_R4.ThreadServerApplication.run(SourceFile:628)
[11:52:08 WARN]: net.minecraft.server.v1_7_R4.ExceptionWorldConflict: The save for world located at ./world is being accessed from another location, aborting
[11:52:08 WARN]:        at net.minecraft.server.v1_7_R4.WorldNBTStorage.checkSession(WorldNBTStorage.java:72)
[11:52:08 WARN]:        at net.minecraft.server.v1_7_R4.World.G(World.java:3010)
[11:52:08 WARN]:        at net.minecraft.server.v1_7_R4.ChunkRegionLoader.a(ChunkRegionLoader.java:130)
[11:52:08 WARN]:        at net.minecraft.server.v1_7_R4.ChunkProviderServer.saveChunk(ChunkProviderServer.java:269)
[11:52:08 WARN]:        at net.minecraft.server.v1_7_R4.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:363)
[11:52:08 WARN]:        at net.minecraft.server.v1_7_R4.WorldServer.doTick(WorldServer.java:192)
[11:52:08 WARN]:        at net.minecraft.server.v1_7_R4.MinecraftServer.v(MinecraftServer.java:750)
[11:52:08 WARN]:        at net.minecraft.server.v1_7_R4.DedicatedServer.v(DedicatedServer.java:307)
[11:52:08 WARN]:        at net.minecraft.server.v1_7_R4.MinecraftServer.u(MinecraftServer.java:643)
[11:52:08 WARN]:        at net.minecraft.server.v1_7_R4.MinecraftServer.run(MinecraftServer.java:549)
[11:52:08 WARN]:        at net.minecraft.server.v1_7_R4.ThreadServerApplication.run(SourceFile:628)
[11:52:08 WARN]: net.minecraft.server.v1_7_R4.ExceptionWorldConflict: The save for world located at ./world is being accessed from another location, aborting
[11:52:08 WARN]:        at net.minecraft.server.v1_7_R4.WorldNBTStorage.checkSession(WorldNBTStorage.java:72)
[11:52:08 WARN]:        at net.minecraft.server.v1_7_R4.World.G(World.java:3010)
[11:52:08 WARN]:        at net.minecraft.server.v1_7_R4.ChunkRegionLoader.a(ChunkRegionLoader.java:130)
[11:52:08 WARN]:        at net.minecraft.server.v1_7_R4.ChunkProviderServer.saveChunk(ChunkProviderServer.java:269)
[11:52:08 WARN]:        at net.minecraft.server.v1_7_R4.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:363)
[11:52:08 WARN]:        at net.minecraft.server.v1_7_R4.WorldServer.doTick(WorldServer.java:192)
[11:52:08 WARN]:        at net.minecraft.server.v1_7_R4.MinecraftServer.v(MinecraftServer.java:750)
[11:52:08 WARN]:        at net.minecraft.server.v1_7_R4.DedicatedServer.v(DedicatedServer.java:307)
[11:52:08 WARN]:        at net.minecraft.server.v1_7_R4.MinecraftServer.u(MinecraftServer.java:643)
[11:52:08 WARN]:        at net.minecraft.server.v1_7_R4.MinecraftServer.run(MinecraftServer.java:549)
[11:52:08 WARN]:        at net.minecraft.server.v1_7_R4.ThreadServerApplication.run(SourceFile:628)
[11:52:08 WARN]: net.minecraft.server.v1_7_R4.ExceptionWorldConflict: The save for world located at ./world is being accessed from another location, aborting
[11:52:08 WARN]:        at net.minecraft.server.v1_7_R4.WorldNBTStorage.checkSession(WorldNBTStorage.java:72)
[11:52:08 WARN]:        at net.minecraft.server.v1_7_R4.World.G(World.java:3010)
[11:52:08 WARN]:        at net.minecraft.server.v1_7_R4.ChunkRegionLoader.a(ChunkRegionLoader.java:130)
[11:52:08 WARN]:        at net.minecraft.server.v1_7_R4.ChunkProviderServer.saveChunk(ChunkProviderServer.java:269)
[11:52:08 WARN]:        at net.minecraft.server.v1_7_R4.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:363)
[11:52:08 WARN]:        at net.minecraft.server.v1_7_R4.WorldServer.doTick(WorldServer.java:192)
[11:52:08 WARN]:        at net.minecraft.server.v1_7_R4.MinecraftServer.v(MinecraftServer.java:750)
[11:52:08 WARN]:        at net.minecraft.server.v1_7_R4.DedicatedServer.v(DedicatedServer.java:307)
[11:52:08 WARN]:        at net.minecraft.server.v1_7_R4.MinecraftServer.u(MinecraftServer.java:643)
[11:52:08 WARN]:        at net.minecraft.server.v1_7_R4.MinecraftServer.run(MinecraftServer.java:549)
[11:52:08 WARN]:        at net.minecraft.server.v1_7_R4.ThreadServerApplication.run(SourceFile:628)
[11:52:08 WARN]: net.minecraft.server.v1_7_R4.ExceptionWorldConflict: The save for world located at ./world is being accessed from another location, aborting
[11:52:08 WARN]:        at net.minecraft.server.v1_7_R4.WorldNBTStorage.checkSession(WorldNBTStorage.java:72)
[11:52:08 WARN]:        at net.minecraft.server.v1_7_R4.World.G(World.java:3010)
[11:52:08 WARN]:        at net.minecraft.server.v1_7_R4.ChunkRegionLoader.a(ChunkRegionLoader.java:130)
[11:52:08 WARN]:        at net.minecraft.server.v1_7_R4.ChunkProviderServer.saveChunk(ChunkProviderServer.java:269)
[11:52:08 WARN]:        at net.minecraft.server.v1_7_R4.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:363)
[11:52:08 WARN]:        at net.minecraft.server.v1_7_R4.WorldServer.doTick(WorldServer.java:192)
[11:52:08 WARN]:        at net.minecraft.server.v1_7_R4.MinecraftServer.v(MinecraftServer.java:750)
[11:52:08 WARN]:        at net.minecraft.server.v1_7_R4.DedicatedServer.v(DedicatedServer.java:307)
[11:52:08 WARN]:        at net.minecraft.server.v1_7_R4.MinecraftServer.u(MinecraftServer.java:643)
[11:52:08 WARN]:        at net.minecraft.server.v1_7_R4.MinecraftServer.run(MinecraftServer.java:549)
[11:52:08 WARN]:        at net.minecraft.server.v1_7_R4.ThreadServerApplication.run(SourceFile:628)