Hello , whenever I'll get it automatically on a server crash and this message appears here in keinett
---- Minecraft Crash Report ----
/ / Hi I'm Minecraft , and I'm a crashaholic .
Time: 31/05/14 23:07
Description : Ticking screen
java.lang.NullPointerException : Ticking screen
at com.mojang.util.UUIDTypeAdapter.fromUUID ( UUIDTypeAdapter.java : 22)
at com.mojang.util.UUIDTypeAdapter.write ( UUIDTypeAdapter.java : 13)
at com.mojang.util.UUIDTypeAdapter.write ( UUIDTypeAdapter.java : 10)
at com.google.gson.internal.bind.TypeAdapterRuntimeTypeWrapper.write(TypeAdapterRuntimeTypeWrapper.java:68)
at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$1.write(ReflectiveTypeAdapterFactory.java:89)
at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.write(ReflectiveTypeAdapterFactory.java:195)
at com.google.gson.Gson.toJson ( Gson.java : 593)
at com.google.gson.Gson.toJson ( Gson.java : 572)
at com.google.gson.Gson.toJson ( Gson.java : 527 )
at com.google.gson.Gson.toJson ( Gson.java : 507)
at com.mojang.authlib.yggdrasil.YggdrasilAuthenticationService.makeRequest(YggdrasilAuthenticationService.java:54)
at com.mojang.authlib.yggdrasil.YggdrasilMinecraftSessionService.joinServer(YggdrasilMinecraftSessionService.java:61)
at bll.a ( SourceFile : 48 )
at jt.a ( SourceFile : 41)
at jt.a ( SourceFile : 10)
at ej.a ( SourceFile : 174)
at bct.c ( SourceFile : 78)
at ban.p ( SourceFile : 1343 )
at ban.ak ( SourceFile : 774 )
at ban.f ( SourceFile : 728 )
at net.minecraft.client.main.Main.main ( SourceFile : 148)
A detailed walkthrough of the error , its code path and all known details is as follows :
-------------------------------------------------- -------------------------------------
- Head -
stacktrace :
at com.mojang.util.UUIDTypeAdapter.fromUUID ( UUIDTypeAdapter.java : 22)
at com.mojang.util.UUIDTypeAdapter.write ( UUIDTypeAdapter.java : 13)
at com.mojang.util.UUIDTypeAdapter.write ( UUIDTypeAdapter.java : 10)
at com.google.gson.internal.bind.TypeAdapterRuntimeTypeWrapper.write(TypeAdapterRuntimeTypeWrapper.java:68)
at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$1.write(ReflectiveTypeAdapterFactory.java:89)
at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.write(ReflectiveTypeAdapterFactory.java:195)
at com.google.gson.Gson.toJson ( Gson.java : 593)
at com.google.gson.Gson.toJson ( Gson.java : 572)
at com.google.gson.Gson.toJson ( Gson.java : 527 )
at com.google.gson.Gson.toJson ( Gson.java : 507)
at com.mojang.authlib.yggdrasil.YggdrasilAuthenticationService.makeRequest(YggdrasilAuthenticationService.java:54)
at com.mojang.authlib.yggdrasil.YggdrasilMinecraftSessionService.joinServer(YggdrasilMinecraftSessionService.java:61)
at bll.a ( SourceFile : 48 )
at jt.a ( SourceFile : 41)
at jt.a ( SourceFile : 10)
at ej.a ( SourceFile : 174)
at bct.c ( SourceFile : 78)
- Affected screen -
details:
Screen name: bct
stacktrace :
at ban.p ( SourceFile : 1343 )
at ban.ak ( SourceFile : 774 )
at ban.f ( SourceFile : 728 )
at net.minecraft.client.main.Main.main ( SourceFile : 148)
- System Details -
details:
Minecraft Version : 1.7.9
Operating System : Windows 7 ( x86 ) version 6.1
Java Version : 1.7.0_55 , Oracle Corporation
Java VM Version : Java HotSpot ( TM ) Client VM ( mixed mode , sharing) , Oracle Corporation
Memory : 47412032 bytes ( 45 MB ) / 82,800,640 bytes ( 78 MB ) up to 518 979 584 bytes ( 494 MB )
JVM Flags: 2 total; -XX : - Xmx512M HeapDumpPath = MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump
AABB Pool Size : 0 ( 0 bytes , 0 MB ) allocated , 0 ( 0 bytes , 0 MB ) used
IntCache : cache : 0 , tcache : 0 , allocated : 0 , tallocated : 0
Launched Version : 1.7.9
LWJGL : 2.9.1
OpenGL : GeForce 8400GS/PCIe/SSE2 GL version 3.3.0 , NVIDIA Corporation
GL Caps : Using multitexturing GL 1.3 .
Using framebuffer objects because OpenGL 3.0 is supported and separate blending is supported .
Anisotropic filtering is supported and maximum anisotropy is 16 .
Shaders are available because OpenGL 2.1 is supported .
Is Modded : Probably not . Jar signature remains and client brand is untouched .
Type: Client ( map_client.txt )
Resource Packs: [ ]
Current Language : Inglês ( U.S. )
Profiler Position: N / A ( disabled )
Vec3 Pool Size : 0 ( 0 bytes , 0 MB ) allocated , 0 ( 0 bytes , 0 MB ) used
Anisotropic Filtering: Off ( 1 )
help please