[06:34:21] [Server thread/INFO]: Preparing level "world"
[06:34:22] [Server thread/INFO]: Preparing start region for level 0
[06:34:22] [Server thread/ERROR]: Couldn't load chunk
java.lang.IllegalArgumentException: Name and ID cannot both be blank
at com.mojang.authlib.GameProfile.<init>(GameProfile.java:25) ~inecraft_server.jar:?]
at att.a(SourceFile:48) ~inecraft_server.jar:?]
at asv.c(SourceFile:107) ~inecraft_server.jar:?]
at ave.a(SourceFile:316) ~inecraft_server.jar:?]
at ave.a(SourceFile:81) ~inecraft_server.jar:?]
at ave.a(SourceFile:69) ~inecraft_server.jar:?]
at ny.f(SourceFile:130) inecraft_server.jar:?]
at ny.c(SourceFile:81) inecraft_server.jar:?]
at net.minecraft.server.MinecraftServer.i(SourceFile:269) inecraft_server.jar:?]
at net.minecraft.server.MinecraftServer.a(SourceFile:240) inecraft_server.jar:?]
at mz.g(SourceFile:190) inecraft_server.jar:?]
at net.minecraft.server.MinecraftServer.run(SourceFile:367) inecraft_server.jar:?]
at mq.run(SourceFile:667) inecraft_server.jar:?]
[06:34:22] [Server thread/ERROR]: Couldn't load chunk
java.lang.IllegalArgumentException: Name and ID cannot both be blank
at com.mojang.authlib.GameProfile.<init>(GameProfile.java:25) ~inecraft_server.jar:?]
at att.a(SourceFile:48) ~inecraft_server.jar:?]
at asv.c(SourceFile:107) ~inecraft_server.jar:?]
at ave.a(SourceFile:316) ~inecraft_server.jar:?]
at ave.a(SourceFile:81) ~inecraft_server.jar:?]
at ave.a(SourceFile:69) ~inecraft_server.jar:?]
at ny.f(SourceFile:130) inecraft_server.jar:?]
at ny.c(SourceFile:81) inecraft_server.jar:?]
at net.minecraft.server.MinecraftServer.i(SourceFile:269) inecraft_server.jar:?]
at net.minecraft.server.MinecraftServer.a(SourceFile:240) inecraft_server.jar:?]
at mz.g(SourceFile:190) inecraft_server.jar:?]
at net.minecraft.server.MinecraftServer.run(SourceFile:367) inecraft_server.jar:?]
at mq.run(SourceFile:667) inecraft_server.jar:?]