When I open the language option,Minecraft crashed and leave a crash report:
---- Minecraft Crash Report ----
// Would you like a cupcake?

Time: 16-8-11 上午11:42
Description: Rendering screen

java.lang.NullPointerException: Rendering screen
at bgc$a.a(SourceFile:124)
at bez.b(SourceFile:390)
at bez.a(SourceFile:210)
at bgc.a(SourceFile:79)
at boq.a(SourceFile:1062)
at bdo.av(SourceFile:990)
at bdo.a(SourceFile:395)
at net.minecraft.client.main.Main.main(SourceFile:124)

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

– Head –
Thread: Client thread
Stacktrace:
at bgc$a.a(SourceFile:124)
at bez.b(SourceFile:390)
at bez.a(SourceFile:210)
at bgc.a(SourceFile:79)

– Screen render details –
Details:
Screen name: bgc
Mouse location: Scaled: (96, 203). Absolute: (193, 73)
Screen size: Scaled: (427, 240). Absolute: (854, 480). Scale factor of 2
Stacktrace:
at boq.a(SourceFile:1062)
at bdo.av(SourceFile:990)
at bdo.a(SourceFile:395)
at net.minecraft.client.main.Main.main(SourceFile:124)

– System Details –
Details:
Minecraft Version: 16w32a
Operating System: Windows 10 (amd64) version 10.0
Java Version: 1.8.0_25, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 70199520 bytes (66 MB) / 196964352 bytes (187 MB) up to 2134114304 bytes (2035 MB)
JVM Flags: 6 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx2G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
Launched Version: 16w32a
LWJGL: 2.9.4
OpenGL: Intel(R) HD Graphics GL version 3.1.0 - Build 9.17.10.4229, 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: Yes
Is Modded: Probably not. Jar signature remains and client brand is untouched.
Type: Client (map_client.txt)
Resource Packs:
Current Language: ~_ERROR~ NullPointerException: null
Profiler Position: N/A (disabled)
CPU: 2x Intel(R) Pentium(R) CPU G645 @ 2.90GHz