Crash on world load

---- Minecraft Crash Report ----
// My bad.

Time: 07/11/18 22:30
Description: Loading NBT data

java.io.UTFDataFormatException: malformed input around byte 6
	at java.io.DataInputStream.readUTF(DataInputStream.java:656)
	at java.io.DataInputStream.readUTF(DataInputStream.java:564)
	at ho.b(SourceFile:430)
	at ho.a(SourceFile:78)
	at ho.a(SourceFile:437)
	at ho.a(SourceFile:81)
	at ho.a(SourceFile:437)
	at ho.a(SourceFile:81)
	at ho.a(SourceFile:437)
	at ho.a(SourceFile:81)
	at hy.a(SourceFile:119)
	at hy.a(SourceFile:84)
	at hy.a(SourceFile:80)
	at bqh.a(SourceFile:103)
	at bqh.b(SourceFile:87)
	at bqh.a(SourceFile:137)
	at uc.d(SourceFile:430)
	at uc$$Lambda$1908/1929585080.get(Unknown Source)
	at java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1582)
	at uc$$Lambda$1925/1696949661.accept(Unknown Source)
	at java.util.ArrayList.forEach(ArrayList.java:1249)
	at uc.d(SourceFile:360)
	at uc.a(SourceFile:272)
	at azy.a(SourceFile:260)
	at azy.c(SourceFile:255)
	at azy.l(SourceFile:250)
	at avf.a(SourceFile:134)
	at avf.a(SourceFile:346)
	at ava.a(SourceFile:439)
	at apu.p(SourceFile:289)
	at apv.k(SourceFile:568)
	at agh.S_(SourceFile:1880)
	at apv.S_(SourceFile:282)
	at uf.i(SourceFile:378)
	at ut.Z_(SourceFile:196)
	at in.a(SourceFile:238)
	at us.c(SourceFile:171)
	at net.minecraft.server.MinecraftServer.b(SourceFile:791)
	at net.minecraft.server.MinecraftServer.a(SourceFile:702)
	at dmf.a(SourceFile:128)
	at net.minecraft.server.MinecraftServer.run(SourceFile:568)
	at java.lang.Thread.run(Thread.java:745)


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

-- Head --
Thread: Server thread
Stacktrace:
	at java.io.DataInputStream.readUTF(DataInputStream.java:656)
	at java.io.DataInputStream.readUTF(DataInputStream.java:564)
	at ho.b(SourceFile:430)
	at ho.a(SourceFile:78)

-- NBT Tag --
Details:
	Tag name: Starts
	Tag type: 10
Stacktrace:
	at ho.a(SourceFile:437)
	at ho.a(SourceFile:81)
	at ho.a(SourceFile:437)
	at ho.a(SourceFile:81)
	at ho.a(SourceFile:437)
	at ho.a(SourceFile:81)
	at hy.a(SourceFile:119)
	at hy.a(SourceFile:84)
	at hy.a(SourceFile:80)
	at bqh.a(SourceFile:103)
	at bqh.b(SourceFile:87)
	at bqh.a(SourceFile:137)
	at uc.d(SourceFile:430)
	at uc$$Lambda$1908/1929585080.get(Unknown Source)
	at java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1582)
	at uc$$Lambda$1925/1696949661.accept(Unknown Source)
	at java.util.ArrayList.forEach(ArrayList.java:1249)
	at uc.d(SourceFile:360)
	at uc.a(SourceFile:272)
	at azy.a(SourceFile:260)
	at azy.c(SourceFile:255)
	at azy.l(SourceFile:250)
	at avf.a(SourceFile:134)
	at avf.a(SourceFile:346)
	at ava.a(SourceFile:439)
	at apu.p(SourceFile:289)
	at apv.k(SourceFile:568)
	at agh.S_(SourceFile:1880)
	at apv.S_(SourceFile:282)

-- Player being ticked --
Details:
	Entity Type: minecraft:player (uf)
	Entity ID: 441
	Entity Name: flapjack_rogue
	Entity's Exact location: 2574.91, 62.07, -1755.57
	Entity's Block location: World: (2574,62,-1756), Chunk: (at 14,3,4 in 160,-110; contains blocks 2560,0,-1760 to 2575,255,-1745), Region: (5,-4; contains chunks 160,-128 to 191,-97, blocks 2560,0,-2048 to 3071,255,-1537)
	Entity's Momentum: 0.00, 0.00, 0.00
	Entity's Passengers: []
	Entity's Vehicle: aqy['Boat'/443, l='SURVIVE', x=2574.91, y=62.52, z=-1755.57]
Stacktrace:
	at uf.i(SourceFile:378)
	at ut.Z_(SourceFile:196)
	at in.a(SourceFile:238)

-- Ticking connection --
Details:
	Connection: in@724996c7
Stacktrace:
	at us.c(SourceFile:171)
	at net.minecraft.server.MinecraftServer.b(SourceFile:791)
	at net.minecraft.server.MinecraftServer.a(SourceFile:702)
	at dmf.a(SourceFile:128)
	at net.minecraft.server.MinecraftServer.run(SourceFile:568)
	at java.lang.Thread.run(Thread.java:745)

-- System Details --
Details:
	Minecraft Version: 18w45a
	Operating System: Windows 10 (amd64) version 10.0
	Java Version: 1.8.0_51, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 1148388136 bytes (1095 MB) / 1845493760 bytes (1760 MB) up to 2147483648 bytes (2048 MB)
	JVM Flags: 9 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xss1M -Xmx2G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M
	Player Count: 1 / 8; [uf['flapjack_rogue'/441, l='SURVIVE', x=2574.91, y=62.07, z=-1755.57]]
	Data Packs: vanilla
	Type: Integrated Server (map_client.txt)
	Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.