this is the crash report. I don't know how to fix this, and I don't believe I have a mod that causes the issue it says that a villager is the issue, ive seen im supposed to use a kill command to get rid of it? how would I do that? can someone please contact me to fix this.

---- Minecraft Crash Report ----
// I bet Cylons wouldn't have this problem.

Time: 6/5/20 1:32 AM
Description: Ticking entity

java.lang.IllegalStateException: POI never registered at ft{x=864, y=65, z=211}
at axx.c(SourceFile:114)
at axv.b(SourceFile:121)
at aqt.a(SourceFile:55)
at aqt$$Lambda$5069/123212870.accept(Unknown Source)
at java.util.Optional.ifPresent(Optional.java:159)
at aqt.c(SourceFile:53)
at aqt.c(SourceFile:23)
at aqe.g(SourceFile:77)
at aqe.f(SourceFile:65)
at apo.e(SourceFile:521)
at apo.a(SourceFile:466)
at bdl.N(SourceFile:273)
at aow.dL(SourceFile:735)
at aov.k(SourceFile:2415)
at aow.k(SourceFile:533)
at aoh.k(SourceFile:126)
at aov.j(SourceFile:2257)
at aow.j(SourceFile:338)
at bdl.j(SourceFile:314)
at zd.a(SourceFile:615)
at zd$$Lambda$4218/902836331.accept(Unknown Source)
at bpx.a(SourceFile:600)
at zd.a(SourceFile:405)
at net.minecraft.server.MinecraftServer.b(SourceFile:873)
at net.minecraft.server.MinecraftServer.a(SourceFile:812)
at eov.a(SourceFile:93)
at net.minecraft.server.MinecraftServer.v(SourceFile:671)
at net.minecraft.server.MinecraftServer.a(SourceFile:256)
at net.minecraft.server.MinecraftServer$$Lambda$3887/1785079892.run(Unknown Source)
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 axx.c(SourceFile:114)
at axv.b(SourceFile:121)
at aqt.a(SourceFile:55)
at aqt$$Lambda$5069/123212870.accept(Unknown Source)
at java.util.Optional.ifPresent(Optional.java:159)
at aqt.c(SourceFile:53)
at aqt.c(SourceFile:23)
at aqe.g(SourceFile:77)
at aqe.f(SourceFile:65)
at apo.e(SourceFile:521)
at apo.a(SourceFile:466)
at bdl.N(SourceFile:273)
at aow.dL(SourceFile:735)
at aov.k(SourceFile:2415)
at aow.k(SourceFile:533)
at aoh.k(SourceFile:126)
at aov.j(SourceFile:2257)
at aow.j(SourceFile:338)
at bdl.j(SourceFile:314)
at zd.a(SourceFile:615)
at zd$$Lambda$4218/902836331.accept(Unknown Source)

– Entity being ticked –
Details:
Entity Type: minecraft:villager (bdl)
Entity ID: 838
Entity Name: Villager
Entity's Exact location: 874.30, 64.20, 182.31
Entity's Block location: World: (874,64,182), Chunk: (at 10,4,6 in 54,11; contains blocks 864,0,176 to 879,255,191), Region: (1,0; contains chunks 32,0 to 63,31, blocks 512,0,0 to 1023,255,511)
Entity's Momentum: 0.00, -0.01, -0.01
Entity's Passengers: []
Entity's Vehicle: ~_ERROR~ NullPointerException: null
Stacktrace:
at bpx.a(SourceFile:600)
at zd.a(SourceFile:405)

– Affected level –
Details:
All players: 1 total; [ze['Wind1Sage'/531, l='ServerLevel[beginer stuff out of way]', x=899.39, y=63.00, z=283.70]]
Chunk stats: ServerChunkCache: 4192
Level dimension: minecraft:overworld
Level spawn location: World: (176,63,210), Chunk: (at 0,3,2 in 11,13; contains blocks 176,0,208 to 191,255,223), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
Level time: 9649949 game time, 13155609 day time
Level name: beginer stuff out of way
Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: false
Level weather: Rain time: 12486 (now: false), thunder time: 43614 (now: false)
Known server brands: vanilla
Level was modded: false
Level storage version: 0x04ABD - Anvil
Stacktrace:
at net.minecraft.server.MinecraftServer.b(SourceFile:873)
at net.minecraft.server.MinecraftServer.a(SourceFile:812)
at eov.a(SourceFile:93)
at net.minecraft.server.MinecraftServer.v(SourceFile:671)
at net.minecraft.server.MinecraftServer.a(SourceFile:256)
at net.minecraft.server.MinecraftServer$$Lambda$3887/1785079892.run(Unknown Source)
at java.lang.Thread.run(Thread.java:745)

– System Details –
Details:
Minecraft Version: 1.16 Pre-release 1
Minecraft Version ID: 1.16-pre1
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: 896458816 bytes (854 MB) / 1845493760 bytes (1760 MB) up to 2147483648 bytes (2048 MB)
CPUs: 8
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; [ze['Wind1Sage'/531, l='ServerLevel[beginer stuff out of way]', x=899.39, y=63.00, z=283.70]]
Data Packs: vanilla
Type: Integrated Server (map_client.txt)
Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.