---- Minecraft Crash Report ----
// You're mean.

Time: 2021-11-13, 6:54 a.m.
Description: Ticking block entity

java.lang.IncompatibleClassChangeError: Class btx does not implement the requested interface java.util.Iterator
	at com.google.common.collect.Iterators$1.hasNext(Iterators.java:140)
	at crk.a(SourceFile:33)
	at crl.a(SourceFile:118)
	at crl.a(SourceFile:63)
	at crl.b(SourceFile:118)
	at crq.a(SourceFile:42)
	at bzw.a(SourceFile:622)
	at cmk.a(SourceFile:368)
	at cmk.a(SourceFile:338)
	at cmk.b(SourceFile:324)
	at cmk.a(SourceFile:143)
	at cmk.a(SourceFile:116)
	at cmk.a(SourceFile:103)
	at cqb$a.a(SourceFile:642)
	at cqb$c.a(SourceFile:696)
	at bzw.R(SourceFile:477)
	at adc.a(SourceFile:357)
	at net.minecraft.server.MinecraftServer.b(SourceFile:876)
	at acd.b(SourceFile:326)
	at net.minecraft.server.MinecraftServer.a(SourceFile:820)
	at net.minecraft.server.MinecraftServer.w(SourceFile:684)
	at net.minecraft.server.MinecraftServer.a(SourceFile:270)
	at java.base/java.lang.Thread.run(Thread.java:831)


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

-- Head --
Thread: Server thread
Stacktrace:
	at com.google.common.collect.Iterators$1.hasNext(Iterators.java:140)
	at crk.a(SourceFile:33)
	at crl.a(SourceFile:118)
	at crl.a(SourceFile:63)
	at crl.b(SourceFile:118)
	at crq.a(SourceFile:42)
	at bzw.a(SourceFile:622)
	at cmk.a(SourceFile:368)
	at cmk.a(SourceFile:338)
	at cmk.b(SourceFile:324)
	at cmk.a(SourceFile:143)
	at cmk.a(SourceFile:116)
	at cmk.a(SourceFile:103)

-- Block entity being ticked --
Details:
	Name: minecraft:hopper // cmk
	Block: Block{minecraft:hopper}[enabled=true,facing=east]
	Block location: World: (439,16,-105), Section: (at 7,0,7 in 27,1,-7; chunk contains blocks 432,-64,-112 to 447,319,-97), Region: (0,-1; contains chunks 0,-32 to 31,-1, blocks 0,-64,-512 to 511,319,-1)
	Block: Block{minecraft:hopper}[enabled=true,facing=east]
	Block location: World: (439,16,-105), Section: (at 7,0,7 in 27,1,-7; chunk contains blocks 432,-64,-112 to 447,319,-97), Region: (0,-1; contains chunks 0,-32 to 31,-1, blocks 0,-64,-512 to 511,319,-1)
Stacktrace:
	at cqb$a.a(SourceFile:642)
	at cqb$c.a(SourceFile:696)
	at bzw.R(SourceFile:477)
	at adc.a(SourceFile:357)

-- Affected level --
Details:
	All players: 0 total; []
	Chunk stats: 3898
	Level dimension: minecraft:overworld
	Level spawn location: World: (0,71,1), Section: (at 0,7,1 in 0,4,0; chunk contains blocks 0,-64,0 to 15,319,15), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,-64,0 to 511,319,511)
	Level time: 1361726276 game time, 215077770 day time
	Level name: test-save
	Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: false
	Level weather: Rain time: 17451 (now: false), thunder time: 22925 (now: false)
	Known server brands: Paper, vanilla
	Level was modded: true
	Level storage version: 0x04ABD - Anvil
Stacktrace:
	at net.minecraft.server.MinecraftServer.b(SourceFile:876)
	at acd.b(SourceFile:326)
	at net.minecraft.server.MinecraftServer.a(SourceFile:820)
	at net.minecraft.server.MinecraftServer.w(SourceFile:684)
	at net.minecraft.server.MinecraftServer.a(SourceFile:270)
	at java.base/java.lang.Thread.run(Thread.java:831)

-- System Details --
Details:
	Minecraft Version: 1.18 Pre-release 1
	Minecraft Version ID: 1.18-pre1
	Operating System: Linux (amd64) version 5.0.0-38-generic
	Java Version: 16.0.1, Microsoft
	Java VM Version: OpenJDK 64-Bit Server VM (mixed mode, sharing), Microsoft
	Memory: 1096191232 bytes (1045 MiB) / 9286189056 bytes (8856 MiB) up to 12884901888 bytes (12288 MiB)
	CPUs: 48
	Processor Vendor: AuthenticAMD
	Processor Name: AMD Ryzen Threadripper 3960X 24-Core Processor
	Identifier: AuthenticAMD Family 23 Model 49 Stepping 0
	Microarchitecture: Zen 2
	Frequency (GHz): 3.80
	Number of physical packages: 1
	Number of physical CPUs: 24
	Number of logical CPUs: 48
	Graphics card #0 name: GP107GL [Quadro P1000]
	Graphics card #0 vendor: NVIDIA Corporation (0x10de)
	Graphics card #0 VRAM (MB): 288.00
	Graphics card #0 deviceId: 0x1cb1
	Graphics card #0 versionInfo: unknown
	Virtual memory max (MB): 127931.95
	Virtual memory used (MB): 40120.05
	Swap memory total (MB): 31250.00
	Swap memory used (MB): 27.25
	JVM Flags: 11 total; -Xmx12G -XX:+UseG1GC -XX:+UnlockExperimentalVMOptions -XX:MaxGCPauseMillis=50 -XX:+DisableExplicitGC -XX:TargetSurvivorRatio=90 -XX:G1NewSizePercent=50 -XX:G1MaxNewSizePercent=80 -XX:InitiatingHeapOccupancyPercent=10 -XX:G1MixedGCLiveThresholdPercent=50 -XX:+AlwaysPreTouch
	Player Count: 0 / 20; []
	Data Packs: vanilla, file/durability ping v1.1.0.zip (incompatible), file/Master Wrench [Datapack].zip (incompatible), file/afk display v1.1.0.zip (incompatible), file/coordinates hud v1.2.0.zip (incompatible), file/double shulker shells v1.3.0.zip (incompatible), file/more mob heads v2.9.1.zip (incompatible), file/multiplayer sleep v2.6.1.zip (incompatible), file/wandering trades v1.5.0.zip (incompatible), file/VanillaTweaks_c252943.zip (incompatible), file/armor_statues_v2.9.2.zip (incompatible), file/anti enderman grief v1.1.0.zip (incompatible), file/stm (incompatible)
	Is Modded: Probably not. Server jar signature and brand is untouched
	Type: Dedicated Server (map_server.txt)