crash when create a new world

when I join New world , it's black screen and crash (singeplayer)

(this is my first time report bug , I bad english so sorry if u guys don't understand)

19w04b\: [^crash-2019-01-28_08.32.17-client.txt]

---- Minecraft Crash Report ----
// Shall we play a game?

Time: 1/28/19 8:32 AM
Description: Registering texture

java.lang.SecurityException: SHA-256 digest error for assets/minecraft/textures/entity/alex.png
	at sun.security.util.ManifestEntryVerifier.verify(Unknown Source)
	at java.util.jar.JarVerifier.processEntry(Unknown Source)
	at java.util.jar.JarVerifier.update(Unknown Source)
	at java.util.jar.JarVerifier$VerifierStream.read(Unknown Source)
	at java.io.FilterInputStream.read(Unknown Source)
	at java.nio.channels.Channels$ReadableByteChannelImpl.read(Unknown Source)
	at com.mojang.blaze3d.platform.TextureUtil.readResource(SourceFile:81)
	at coq.a(SourceFile:88)
	at coq.a(SourceFile:82)
	at doi.a(SourceFile:27)
	at don.a(SourceFile:60)
	at don.a(SourceFile:42)
	at dey.a(SourceFile:370)
	at dey.a(SourceFile:486)
	at dey.a(SourceFile:466)
	at dew.i(SourceFile:702)
	at dew.b(SourceFile:1068)
	at dew.a(SourceFile:884)
	at dew.a(SourceFile:757)
	at cpy.d(SourceFile:930)
	at cpy.b(SourceFile:406)
	at net.minecraft.client.main.Main.main(SourceFile:154)


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

-- Head --
Thread: Client thread
Stacktrace:
	at sun.security.util.ManifestEntryVerifier.verify(Unknown Source)
	at java.util.jar.JarVerifier.processEntry(Unknown Source)
	at java.util.jar.JarVerifier.update(Unknown Source)
	at java.util.jar.JarVerifier$VerifierStream.read(Unknown Source)
	at java.io.FilterInputStream.read(Unknown Source)
	at java.nio.channels.Channels$ReadableByteChannelImpl.read(Unknown Source)
	at com.mojang.blaze3d.platform.TextureUtil.readResource(SourceFile:81)
	at coq.a(SourceFile:88)
	at coq.a(SourceFile:82)
	at doi.a(SourceFile:27)

-- Resource location being registered --
Details:
	Resource location: minecraft:textures/entity/alex.png
	Texture object class: doi
Stacktrace:
	at don.a(SourceFile:60)
	at don.a(SourceFile:42)
	at dey.a(SourceFile:370)
	at dey.a(SourceFile:486)
	at dey.a(SourceFile:466)
	at dew.i(SourceFile:702)
	at dew.b(SourceFile:1068)
	at dew.a(SourceFile:884)

-- Affected level --
Details:
	Level name: MpServer
	All players: 1 total; [dej['thuanan123'/24, l='MpServer', x=8.50, y=4.00, z=36.50]]
	Chunk stats: MultiplayerChunkCache: 625, 441
	Level seed: 0
	Level generator: ID 01 - flat, ver 0. Features enabled: false
	Level generator options: {}
	Level spawn location: World: (0,4,32), Chunk: (at 0,0,0 in 0,2; contains blocks 0,0,32 to 15,255,47), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
	Level time: 59 game time, 59 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: 10 total; [aqz['Dân làng'/16, l='MpServer', x=73.44, y=5.00, z=3.50], aqz['Dân làng'/17, l='MpServer', x=49.36, y=5.00, z=-19.49], aqz['Dân làng'/2, l='MpServer', x=13.44, y=5.00, z=6.50], dej['thuanan123'/24, l='MpServer', x=8.50, y=4.00, z=36.50], aqz['Dân làng'/3, l='MpServer', x=11.36, y=5.00, z=22.51], amj['Con mèo'/9, l='MpServer', x=46.41, y=4.94, z=1.22], amj['Con mèo'/10, l='MpServer', x=41.66, y=4.94, z=2.81], aqz['Dân làng'/13, l='MpServer', x=34.56, y=5.00, z=-0.50], aqz['Dân làng'/14, l='MpServer', x=50.50, y=5.00, z=16.44], aqz['Dân làng'/15, l='MpServer', x=49.44, y=5.00, z=-11.50]]
	Retry entities: 0 total; []
	Server brand: vanilla
	Server type: Integrated singleplayer server
Stacktrace:
	at dce.a(SourceFile:369)
	at cpy.b(SourceFile:1953)
	at cpy.b(SourceFile:414)
	at net.minecraft.client.main.Main.main(SourceFile:154)

-- System Details --
Details:
	Minecraft Version: 19w04b
	Operating System: Windows 7 (x86) version 6.1
	Java Version: 1.8.0_201, Oracle Corporation
	Java VM Version: Java HotSpot(TM) Client VM (mixed mode), Oracle Corporation
	Memory: 214341616 bytes (204 MB) / 501964800 bytes (478 MB) up to 791937024 bytes (755 MB)
	JVM Flags: 5 total; -Xmn128M -Xmx768M -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xss256K -XX:+UseConcMarkSweepGC
	Launched Version: 19w04b
	LWJGL: 3.1.6 build 14
	OpenGL: GeForce GT 430/PCIe/SSE2 GL version 4.6.0 NVIDIA 391.35, 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: Tiếng Việt (Việt Nam)
	CPU: 2x Intel(R) Pentium(R) CPU G620 @ 2.60GHz