crash

---- Minecraft Crash Report ----
// This doesn't make any sense!

Time: 14/06/18 6:29 PM
Description: Unexpected error

java.lang.NullPointerException: Unexpected error
	at ciq.P(SourceFile:2151)
	at dix.Y_(SourceFile:26)
	at ciq.m(SourceFile:1252)
	at ciq.c(SourceFile:785)
	at ciq.a(SourceFile:379)
	at net.minecraft.client.main.Main.main(SourceFile:144)


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

-- Head --
Thread: Client thread
Stacktrace:
	at ciq.P(SourceFile:2151)
	at dix.Y_(SourceFile:26)

-- Affected level --
Details:
	Level name: MpServer
	All players: 1 total; [cvm['Minikloon'/1, l='MpServer', x=-2459.00, y=31.00, z=713.00]]
	Chunk stats: MultiplayerChunkCache: 202, 202
	Level seed: 0
	Level generator: ID 01 - flat, 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: 0 game time, 0 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: survival (ID 0). Hardcore: false. Cheats: false
	Forced entities: 1 total; [cvm['Minikloon'/1, l='MpServer', x=-2459.00, y=31.00, z=713.00]]
	Retry entities: 0 total; []
	Server brand: crafty
	Server type: Non-integrated multiplayer server
Stacktrace:
	at ctj.a(SourceFile:391)
	at ciq.b(SourceFile:1827)
	at ciq.a(SourceFile:392)
	at net.minecraft.client.main.Main.main(SourceFile:144)