Hello Mojang,

befor I start this Post, i'm sorry for my english, because it's not good. This is the Crash-Report-Log:

---- Minecraft Crash Report ----
// I blame Dinnerbone.

Time: 21.02.18 13:04
Description: Unexpected error

java.lang.NullPointerException: Unexpected error
at vn$a.a(SourceFile:77)
at vn$a.a(SourceFile:63)
at axq.a(SourceFile:210)
at bfs.a(SourceFile:263)
at abd.a(SourceFile:1105)
at ckd.b(SourceFile:1183)
at ckd.a(SourceFile:1083)
at ckd.a(SourceFile:944)
at bxe.b(SourceFile:820)
at bxe.a(SourceFile:381)
at net.minecraft.client.main.Main.main(SourceFile:141)

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

– Head –
Thread: Client thread
Stacktrace:
at vn$a.a(SourceFile:77)
at vn$a.a(SourceFile:63)
at axq.a(SourceFile:210)
at bfs.a(SourceFile:263)
at abd.a(SourceFile:1105)
at ckd.b(SourceFile:1183)
at ckd.a(SourceFile:1083)

– Affected level –
Details:
Level name: MpServer
All players: 1 total; [cjq['DarkAvatar_'/47852, l='MpServer', x=8,50, y=65,00, z=8,50]]
Chunk stats: MultiplayerChunkCache: 0, 0
Level seed: 0
Level generator: ID 03 - amplified, ver 0. Features enabled: false
Level generator options:
Level spawn location: World: (8,64,8), Chunk: (at 8,4,8 in 0,0; contains blocks 0,0,0 to 15,255,15), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
Level time: 1 game time, 1 day time
Level dimension: 0
Level storage version: 0x00000 - Unknown?
Level weather: Rain time: 0 (now: false), thunder time: 0 (now: false)
Level game mode: Game mode: creative (ID 1). Hardcore: false. Cheats: false
Forced entities: 1 total; [cjq['DarkAvatar_'/47852, l='MpServer', x=8,50, y=65,00, z=8,50]]
Retry entities: 0 total; []
Server brand: vanilla
Server type: Non-integrated multiplayer server
Stacktrace:
at chn.a(SourceFile:368)
at bxe.b(SourceFile:1827)
at bxe.a(SourceFile:394)
at net.minecraft.client.main.Main.main(SourceFile:141)

– System Details –
Details:
Minecraft Version: 18w07c
Operating System: Windows 7 (amd64) version 6.1
Java Version: 1.8.0_25, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 117843080 bytes (112 MB) / 251658240 bytes (240 MB) up to 1073741824 bytes (1024 MB)
JVM Flags: 8 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=16M
Launched Version: 18w07c
LWJGL: 3.1.2 build 29
OpenGL: Intel(R) HD Graphics GL version 4.0.0 - Build 10.18.10.4276, Intel
GL Caps: Using GL 1.3 multitexturing.
Using GL 1.3 texture combiners.
Using framebuffer objects because OpenGL 3.0 is supported and separate blending is supported.
Shaders are available because OpenGL 2.1 is supported.
VBOs are available because OpenGL 1.5 is supported.

Using VBOs: No
Is Modded: Probably not. Jar signature remains and client brand is untouched.
Type: Client (map_client.txt)
Resource Packs:
Current Language: English (US)
Profiler Position: N/A (disabled)
CPU: 4x Intel(R) Celeron(R) CPU N2940 @ 1.83GHz

I hope you guys can help me.