---- Minecraft Crash Report ----
// Daisy, daisy...

Time: 29.11.18 16:43
Description: Ticking player

java.lang.AbstractMethodError: bxx$$Lambda$1058/1186076210.a(Lcom/mojang/datafixers/Dynamic;)Ljava/lang/Object;
	at yg.a(SourceFile:18)
	at cat.<init>(SourceFile:44)
	at bvl$a.<init>(SourceFile:29)
	at bxc$$Lambda$996/457596841.load(Unknown Source)
	at cax.a(SourceFile:86)
	at bqu.a(SourceFile:614)
	at bqu.a(SourceFile:229)
	at ui.d(SourceFile:439)
	at ui$$Lambda$2102/1444669759.get(Unknown Source)
	at java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1582)
	at ui$$Lambda$2113/1613233883.accept(Unknown Source)
	at java.util.ArrayList.forEach(ArrayList.java:1249)
	at ui.e(SourceFile:369)
	at ui.a(SourceFile:272)
	at baq.a(SourceFile:261)
	at bxb.a(SourceFile:129)
	at bpx.a(SourceFile:108)
	at uj.a(SourceFile:808)
	at ru.a(SourceFile:48)
	at ru.a(SourceFile:42)
	at ru$$Lambda$1745/1756538502.run(Unknown Source)
	at com.mojang.brigadier.CommandDispatcher.execute(CommandDispatcher.java:132)
	at com.mojang.brigadier.CommandDispatcher.execute(CommandDispatcher.java:72)
	at cb.a(SourceFile:221)
	at uz.c(SourceFile:1094)
	at uz.a(SourceFile:1081)
	at nc.a(SourceFile:37)
	at nc.a(SourceFile:9)
	at jq.a(SourceFile:15)
	at jq$$Lambda$2285/31674237.run(Unknown Source)
	at qo.run(SourceFile:18)
	at net.minecraft.server.MinecraftServer.q(SourceFile:654)
	at net.minecraft.server.MinecraftServer.p(SourceFile:625)
	at net.minecraft.server.MinecraftServer.run(SourceFile:584)
	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 yg.a(SourceFile:18)
	at cat.<init>(SourceFile:44)
	at bvl$a.<init>(SourceFile:29)
	at bxc$$Lambda$996/457596841.load(Unknown Source)
	at cax.a(SourceFile:86)
	at bqu.a(SourceFile:614)
	at bqu.a(SourceFile:229)
	at ui.d(SourceFile:439)
	at ui$$Lambda$2102/1444669759.get(Unknown Source)
	at java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1582)
	at ui$$Lambda$2113/1613233883.accept(Unknown Source)
	at java.util.ArrayList.forEach(ArrayList.java:1249)
	at ui.e(SourceFile:369)
	at ui.a(SourceFile:272)
	at baq.a(SourceFile:261)
	at bxb.a(SourceFile:129)
	at bpx.a(SourceFile:108)
	at uj.a(SourceFile:808)
	at ru.a(SourceFile:48)
	at ru.a(SourceFile:42)
	at ru$$Lambda$1745/1756538502.run(Unknown Source)
	at com.mojang.brigadier.CommandDispatcher.execute(CommandDispatcher.java:132)
	at com.mojang.brigadier.CommandDispatcher.execute(CommandDispatcher.java:72)
	at cb.a(SourceFile:221)
	at uz.c(SourceFile:1094)
	at uz.a(SourceFile:1081)

-- Player being ticked --
Details:
	Entity Type: minecraft:player (ul)
	Entity ID: 678
	Entity Name: Vampire_Artyom
	Entity's Exact location: -879.50, 72.07, 368.50
	Entity's Block location: World: (-880,72,368), Chunk: (at 0,4,0 in -55,23; contains blocks -880,0,368 to -865,255,383), Region: (-2,0; contains chunks -64,0 to -33,31, blocks -1024,0,0 to -513,255,511)
	Entity's Momentum: 0.00, 0.00, 0.00
	Entity's Passengers: []
	Entity's Vehicle: ~~ERROR~~ NullPointerException: null
Stacktrace:
	at ul.i(SourceFile:437)
	at uz.ab_(SourceFile:198)
	at io.a(SourceFile:238)
	at uy.c(SourceFile:171)
	at net.minecraft.server.MinecraftServer.b(SourceFile:805)
	at net.minecraft.server.MinecraftServer.a(SourceFile:716)
	at dog.a(SourceFile:128)
	at net.minecraft.server.MinecraftServer.run(SourceFile:582)
	at java.lang.Thread.run(Thread.java:745)

-- Ticking connection --
Details:
	Connection: io@494a2cce

-- System Details --
Details:
	Minecraft Version: 18w48a
	Operating System: Windows 7 (amd64) version 6.1
	Java Version: 1.8.0_51, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 134687768 bytes (128 MB) / 1711276032 bytes (1632 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; [ul['Vampire_Artyom'/678, l='New AWESOME WORLDE', x=-879.50, y=72.07, z=368.50]]
	Data Packs: vanilla
	Type: Integrated Server (map_client.txt)
	Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.