Minecraft 1.13 snapshots opens, but then suddenly close.

Hello! I have an issue. I can't normally new 1.13 snaphots. I have this probles from like 1 month. Here's the crash report:

---- Minecraft Crash Report ----
// There are four lights!

Time: 05.01.18 20:14
Description: Initializing game

com.google.gson.JsonSyntaxException: com.google.gson.stream.MalformedJsonException: Expected name at line 12 column 4 path $.language.mp_MP
	at com.google.gson.internal.Streams.parse(Streams.java:60)
	at com.google.gson.JsonParser.parse(JsonParser.java:84)
	at com.google.gson.JsonParser.parse(JsonParser.java:59)
	at sf.a(SourceFile:73)
	at sf.a(SourceFile:66)
	at sx.a(SourceFile:35)
	at ss.a(SourceFile:38)
	at su.a(SourceFile:33)
	at bny.a(SourceFile:1170)
	at bnv.an(SourceFile:439)
	at bnv.a(SourceFile:367)
	at net.minecraft.client.main.Main.main(SourceFile:140)
Caused by: com.google.gson.stream.MalformedJsonException: Expected name at line 12 column 4 path $.language.mp_MP
	at com.google.gson.stream.JsonReader.syntaxError(JsonReader.java:1559)
	at com.google.gson.stream.JsonReader.doPeek(JsonReader.java:505)
	at com.google.gson.stream.JsonReader.hasNext(JsonReader.java:414)
	at com.google.gson.internal.bind.TypeAdapters$29.read(TypeAdapters.java:738)
	at com.google.gson.internal.bind.TypeAdapters$29.read(TypeAdapters.java:739)
	at com.google.gson.internal.bind.TypeAdapters$29.read(TypeAdapters.java:714)
	at com.google.gson.internal.Streams.parse(Streams.java:48)
	... 11 more


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

-- Head --
Thread: Client thread
Stacktrace:
	at com.google.gson.internal.Streams.parse(Streams.java:60)
	at com.google.gson.JsonParser.parse(JsonParser.java:84)
	at com.google.gson.JsonParser.parse(JsonParser.java:59)
	at sf.a(SourceFile:73)
	at sf.a(SourceFile:66)
	at sx.a(SourceFile:35)
	at ss.a(SourceFile:38)
	at su.a(SourceFile:33)
	at bny.a(SourceFile:1170)
	at bnv.an(SourceFile:439)

-- Initialization --
Details:
Stacktrace:
	at bnv.a(SourceFile:367)
	at net.minecraft.client.main.Main.main(SourceFile:140)

-- System Details --
Details:
	Minecraft Version: 18w01a
	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: 45693720 bytes (43 MB) / 117440512 bytes (112 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
	IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
	Launched Version: 18w01a
	LWJGL: 3.1.2 build 29
	OpenGL: GeForce 9400 GT/PCIe/SSE2 GL version 3.3.0, NVIDIA Corporation
	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 AMD Athlon(tm) 64 X2 Dual Core Processor 5000+