my game is crash and

---- Minecraft Crash Report --------

Minecraft Crash Report ----/

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Time: 14.06.19 20:09Description: Unexpected error
java.lang.NullPointerException: Unexpected error at ati.f(SourceFile:86) at ath.c(SourceFile:232) at ail.<init>(SourceFile:234) at ath.<init>(SourceFile:35) at ath.<init>(SourceFile:39) at ati.<init>(SourceFile:50) at bbw.a(SourceFile:40) at bce.a(SourceFile:189) at dhq.a(SourceFile:318) at cvo.aF(SourceFile:1335) at cvo.aG(SourceFile:1562) at cvo.m(SourceFile:1411) at cvo.e(SourceFile:925) at cvo.b(SourceFile:411) 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 threadStacktrace: at ati.f(SourceFile:86) at ath.c(SourceFile:232) at ail.<init>(SourceFile:234) at ath.<init>(SourceFile:35) at ath.<init>(SourceFile:39) at ati.<init>(SourceFile:50) at bbw.a(SourceFile:40) at bce.a(SourceFile:189) at dhq.a(SourceFile:318) at cvo.aF(SourceFile:1335) at cvo.aG(SourceFile:1562)
– Affected level --Details: All players: 1 total; [dkb['MimoPetar25'/19, l='MpServer', x=10.19, y=56.00, z=11.80]] Chunk stats: Client Chunk Cache: 361, 225 Level dimension: minecraft:overworld Level name: MpServer Level seed: 0 Level generator: ID 01 - flat, ver 0. Features enabled: false Level generator options: {} Level spawn location: World: (8,55,8), Chunk: (at 8,3,8 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: 333895 game time, 330 day time 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 Server brand: vanilla Server type: Integrated singleplayer serverStacktrace: at dhr.a(SourceFile:421) at cvo.b(SourceFile:1923) at cvo.b(SourceFile:431) at net.minecraft.client.main.Main.main(SourceFile:154)
– System Details --Details: Minecraft Version: 1.14.3 Pre-Release 3 Operating System: Windows 7 (amd64) version 6.1 Java Version: 1.8.0_202, Oracle Corporation Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation Memory: 1430806720 bytes (1364 MB) / 1946157056 bytes (1856 MB) up to 2147483648 bytes (2048 MB) JVM Flags: 9 total; -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=16M -Xmx2048m -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx2048m Launched Version: 1.14.3-pre3 LWJGL: 3.2.2 build 10 OpenGL: ATI Radeon HD 3600 Series GL version 3.3.11672 Compatibility Profile Context, ATI Technologies Inc. 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: vanilla Current Language: English (US) CPU: 2x Intel(R) Core(TM)2 Duo CPU E6850 @ 3.00GHz

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i can't try any entitys