pyrbu / znpcsplus

A Spigot plugin for creating interactable fake entities

ZNPCsPlus

ZNPCsPlus is a Spigot plugin that is used to create fake entities that players can interact with to perform actions like switching servers on a network or executing commands.

This plugin is a remake of a plugin called ZNPCs, we originally started because the maintainer of ZNPCs decided to announce that he was dropping support for the plugin.

Looking for up-to-date builds of the plugin? Check out our Jenkins

Why is it so good?

• 100% Packet Based - Nothing is ran on the main thread
• Performance & stability oriented code
• Support for all versions from 1.8 to 1.20.4
• Support for multiple different storage options
• Intuitive command system

Requirements, Extensions & Supported Software

Requirements:

• Java 8+
• Minecraft 1.8 - 1.20.4

Supported Softwares:

• Spigot (Website)
• Paper (Github) (Website)
• Folia (Github) (Website)
• ArcLight (Github)

Optional Dependencies/Extensions:

• PlaceholderAPI

Found a bug?

Open an issue in the GitHub issue tracker or join our support discord

BStats

Like what you see? Want the project to continue improving? Consider starring the repository & leaving a positive review on Spigot!

Credits

• PacketEvents 2.0 - Packet library
• wiki.vg - Minecraft protocol documentation
• gson - JSON parsing library made by Google
• Mineskin.org - Website for raw skin file uploads
• SpigotResourcesAPI - Spigot API wrapper used for updater
• adventure - Minecraft text api
• DazzleConf - Configuration library
• Director - Command library
• PlaceholderAPI - Universal string placeholder library

znpcsplus's Issues

Can't unset/remove glow property

Once we have set glow property, there is no way to remove it (using command ofc).

Hologram Memory Leak

Internal holograms appear to have a severe memory leak, as indicated in this report:

Make poses that don't work not show based on NPC type

Okay, for example I have a Player NPC. I want to change his pose to SITTING pose with command npc property set 1 pose SITTING, but... nothing heppend! Some poses is work, such us SWIMMING, SLEEPING, STANDING, CROUCHING, and may be some others.
If player NPC does not support other poses, I think plugin have to dont show this poses. Or, if it shuld work... rapair if :)

Thank you

Error in console

https://gist.github.com/Regomy/46677e4b228732420b81bfd8b995a365

[07:58:53 INFO]: This server is running Paper version git-Paper-196 (MC: 1.20.1) (Implementing API version 1.20.1-R0.1-SNAPSHOT) (Git: 773dd72)

[07:59:01 INFO]: Server Plugins (33):
[07:59:01 INFO]: Bukkit Plugins:
[07:59:01 INFO]: - ajLeaderboards, AntiRelog, Chatty, Clans, *CmdBlocker, DecentHolograms, DeluxeMenus, Essentials, EssentialsSpawn, FastAsyncWorldEdit
[07:59:01 INFO]: GrimAC, *HideAchievements, *IRandomTeleport, ItemJoin, LuckPerms, Multiverse-Core, PlaceholderAPI, ProtectionStones, ProtocolLib, *Punix
[07:59:01 INFO]: *RedstoneLimiter, *rMine, TAB, TimeIsMoney, Vault, ViaBackwards, ViaRewind, ViaRewind-Legacy-Support, ViaVersion, *VoidSpawn
[07:59:01 INFO]: *WoodCutter, WorldGuard, ZNPCsPlus

NPCs don't appear

Error: https://yaso.su/Q6Ii3Bic
Purpur 1.19.3

Support to Folia

It will possible to add Folia support?

Folia url: https://github.com/PaperMC/Folia

Java 8 Support

While I support encouraging end users to use the latest version of Java, I'm curious if there is an actual need for ZNPCsPlus to compile with it, given it supports older Minecraft versions?

Requiring Java 17 prevents Java 8 resources which depend on ZNPCsPlus from doing so properly (example). There are "valid" reasons for server owners to run it, such as running HyperConomy on older servers, which Java 9 broke due to major reflection changes. It's also not a matter of security - Java 8 continues to receive updates as recently as this month.

So if there's no technical reason for compiling against Java 17, would you consider Java 8? I could fork & pull request.

/znpcs near Exception if entity in another world

/znpcs near Exception (distance between different worlds) if entity in another world.

Error occurred while enabling ZNPCsPlus v1.0.4 (Is it up to date?)

https://pastebin.com/1q8aAcby
1.16.5. Again.
:'>

NullPointerException

https://pastebin.com/raw/tEdnGyjE

This is the first time I haven't seen an NPC. When I teleported away and back to the NPC, it was already visible. It's only happened once so far. I don't know if this is related to the error I've sent.

CRITICAL BUG: IndexOutOfBoundsException

If I teleport to NPCs while sing vanilla Minecraft 1.19.3, the server kicks me out with this error message: https://i.imgur.com/5r3Qdvg.png

With Minecraft 1.19.4 it's working without any problem.

Server version: Pufferfish-59 (MC: 1.19.3)
ZNPCsPlus version: 1.0.5 (Built from GitHub on April 30)

Cannot invoke "java.util.UUID.getMostSignificantBits()" because "uuid" is null

Reopen #59.

I compiled a new version, but the players are still kicking from the server if the NPC PLAYER is nearby.

There is no such error with ZNPCsPlus 1.0.7. So I think the problem appeared in the commit 96e2edb

2.0.0 Tracking Issue

This is the tracking issue for the 2.0.0 release of the plugin, if you think you are able to and are willing to complete/help with any of the uncompleted tasks below please contact me in our plugin discord and I will point you in the right direction

• Rewrite entity system transitioning from reflection to packets
• Rewrite holograms
• Rewrite interactions system
• Rewrite NPC registry
• Rewrite skin system (make it more reliable)
• Add Folia support
• Rewrite commands
• Add new storage system that supports different storage types (MongoDB, MariaDB, YAML)
• Add converter for legacy data (old ZNPCs)
• Add API for plugin developers

Player lost connection: [ZNPCsPlus] > Couldn't inject interaction detector to channel

This error pops-up again
https://pastebin.com/iZAD7VKJ

and this happens quite often...

Random error after storage reload

java.util.ConcurrentModificationException: null
        at java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1631) ~[?:?]
        at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:509) ~[?:?]
        at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:499) ~[?:?]
        at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:921) ~[?:?]
        at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) ~[?:?]
        at java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:682) ~[?:?]
        at lol.pyr.znpcsplus.npc.NpcRegistryImpl.getProcessable(NpcRegistryImpl.java:94) ~[ZNPCsPlus #94.jar:?]
        at lol.pyr.znpcsplus.tasks.NpcProcessorTask.run(NpcProcessorTask.java:32) ~[ZNPCsPlus #94.jar:?]
        at org.bukkit.craftbukkit.v1_20_R1.scheduler.CraftTask.run(CraftTask.java:101) ~[pufferfish-1.20.1.jar:git-Pufferfish-14]
        at org.bukkit.craftbukkit.v1_20_R1.scheduler.CraftAsyncTask.run(CraftAsyncTask.java:57) ~[pufferfish-1.20.1.jar:git-Pufferfish-14]
        at com.destroystokyo.paper.ServerSchedulerReportingWrapper.run(ServerSchedulerReportingWrapper.java:22) ~[pufferfish-1.20.1.jar:?]
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) ~[?:?]
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) ~[?:?]
        at java.lang.Thread.run(Thread.java:833) ~[?:?]

Build #94

Error when cloning repo

When I call NPC.all().size(); it returns 0 even though there are NPCs on my server.
I'm running the latest version (1.0.5) for my plugin and the server.

I was also getting an error when cloning this repository.

Line 88 in gradle.build -> if (DIST_USERNAME != null && DIST_PASSWORD != null) {

Support for ItemsAdder/MythicMobs/ModelEngine

Feature add request
I think you need to add support to ItemsAdder/MythicMobs/ModelEngine for CustomModelData mobs hook. Just like Citizens2 does

Originally posted by @Aitooor in #38 (comment)

Error occurred while enabling ZNPCsPlus

I'm launching the plugin for the first time. there are no presets or any changes.

[19:11:10 ERROR]: Error occurred while enabling ZNPCsPlus v1.0.1 (Is it up to date?)
java.lang.ExceptionInInitializerError: null
at io.github.znetworkw.znpcservers.configuration.ConfigurationConstants.(ConfigurationConstants.java:9) ~[ZNPCsPlus-1.0.1.jar:?]
at lol.pyr.znpcsplus.ZNPCsPlus.onEnable(ZNPCsPlus.java:93) ~[ZNPCsPlus-1.0.1.jar:?]
at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:279) ~[plazma-api-1.19.4-R0.1-SNAPSHOT.jar:?]
at io.papermc.paper.plugin.manager.PaperPluginInstanceManager.enablePlugin(PaperPluginInstanceManager.java:192) ~[plazma-1.19.4.jar:git-Plazma-"84f3148"]
at io.papermc.paper.plugin.manager.PaperPluginManagerImpl.enablePlugin(PaperPluginManagerImpl.java:104) ~[plazma-1.19.4.jar:git-Plazma-"84f3148"]
at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:507) ~[plazma-api-1.19.4-R0.1-SNAPSHOT.jar:?]
at org.bukkit.craftbukkit.v1_19_R3.CraftServer.enablePlugin(CraftServer.java:569) ~[plazma-1.19.4.jar:git-Plazma-"84f3148"]
at org.bukkit.craftbukkit.v1_19_R3.CraftServer.enablePlugins(CraftServer.java:480) ~[plazma-1.19.4.jar:git-Plazma-"84f3148"]
at net.minecraft.server.MinecraftServer.loadWorld0(MinecraftServer.java:645) ~[plazma-1.19.4.jar:git-Plazma-"84f3148"]
at net.minecraft.server.MinecraftServer.loadLevel(MinecraftServer.java:444) ~[plazma-1.19.4.jar:git-Plazma-"84f3148"]
at net.minecraft.server.dedicated.DedicatedServer.initServer(DedicatedServer.java:350) ~[plazma-1.19.4.jar:git-Plazma-"84f3148"]
at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1122) ~[plazma-1.19.4.jar:git-Plazma-"84f3148"]
at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:326) ~[plazma-1.19.4.jar:git-Plazma-"84f3148"]
at java.lang.Thread.run(Thread.java:833) ~[?:?]
Caused by: java.lang.NullPointerException: Cannot invoke "com.google.common.collect.ImmutableSet.stream()" because the return value of "java.util.Map.get(Object)" is null
at io.github.znetworkw.znpcservers.configuration.Configuration.(Configuration.java:40) ~[ZNPCsPlus-1.0.1.jar:?]
at io.github.znetworkw.znpcservers.configuration.Configuration.(Configuration.java:33) ~[ZNPCsPlus-1.0.1.jar:?]
at io.github.znetworkw.znpcservers.configuration.Configuration.(Configuration.java:28) ~[ZNPCsPlus-1.0.1.jar:?]
... 14 more

Hand stays after deleted property

When you have a hand property and delete it, the hand stays, unless you reload the storage.

Build #94

Add command to change NPS`s ID

When I realised, that ID's can be not only number, I wanna to change it to more relevant ID's, but I can't. Okay, ofcourse, I can edit storage files, but... It seems not good.

Plugin issue

Hello I am using Purpur 1.19.4 and I migrated from ZNpc to this ZNPCsPlus but the problem is all of my NPC names changed to armor stand also some of them get invisible often and get visible again also there was a error when the plugin tries to start up

Error:

survival  | java.lang.NullPointerException: Cannot invoke "lol.pyr.znpcsplus.lib.spigotresources.api.Resource.getVersion()" because "resource" is null
survival  |     at lol.pyr.znpcsplus.updater.UpdateChecker.run(UpdateChecker.java:26) ~[ZNPCsPlus-1.0.5.jar:?]
survival  |     at org.bukkit.craftbukkit.v1_19_R3.scheduler.CraftTask.run(CraftTask.java:101) ~[purpur-1.19.4.jar:git-Purpur-1962]
survival  |     at org.bukkit.craftbukkit.v1_19_R3.scheduler.CraftAsyncTask.run(CraftAsyncTask.java:57) ~[purpur-1.19.4.jar:git-Purpur-1962]
survival  |     at com.destroystokyo.paper.ServerSchedulerReportingWrapper.run(ServerSchedulerReportingWrapper.java:22) ~[purpur-1.19.4.jar:?]
survival  |     at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) ~[?:?]
survival  |     at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) ~[?:?]
survival  |     at java.lang.Thread.run(Unknown Source) ~[?:?]

Most entity types are broken in 1.8

It wasnt a packet events issue

right clicking the npc doesnt work

When I Right Click The Npc It Doesnt Run Any Commands At All I Tried Different Action such as SERVER CMD CHAT and more none of them work

java.lang.ClassNotFoundException: No class found

Hi, the idea is great! The original has many problems even. But I want to say that this fork is creating infinite Exceptions on my server. Where could I get support?

https://mclo.gs/5ldvBPd
And then, even off, I get the following infinite log:
https://mclo.gs/CrbFQtE

Server version: Flamepaper - 1.8.8
Java version: openjdk 17.0.6 2023-01-17
O.S.: Windows 7 x64

Error on startup on old versions (AGAIN)

Yes. I am using latest release. And this also happens on paper.

on 1.16.5 - https://mclo.gs/dD85rs9
on 1.12.2 - https://mclo.gs/aS9fsgP (plugin works, but throws an error)

memory leak (build #102)

Self-explanatory.

Image taken after 11h uptime. (Have at least 3 more heap dumps with the same high memory usage between different restarts.)

(dont mind ajleaderboards, working on that one)

Discord: txslx (in case you need full image etc)

Allow non-registered commands to be executed

Whenever I give the npc a command such as /warp created by plugins such as DeluxeMenus, which aren't registered commands the plugin does not work with them

Whenever I click the NPC it says unknown command even though the command exists, it's just not registered... this does not happen with the Citizens plugin. and you might say: "why not just register the command?" in some use cases registering the command isn't possible for example if I register the command /plot for my deluxemenu gui it'll completely make my plotsquared plugin disfunctional when executing other commands such as /plot teleport

Error dispatching bukkit commands

[23:11:26 ERROR]: Thread Netty Server IO #1 failed main thread check: command dispatch
java.lang.Throwable: null
	at org.spigotmc.AsyncCatcher.catchOp(AsyncCatcher.java:15) ~[paper-1.19.4.jar:git-Paper-466]
	at org.bukkit.craftbukkit.v1_19_R3.CraftServer.dispatchCommand(CraftServer.java:882) ~[paper-1.19.4.jar:git-Paper-466]
	at org.bukkit.Bukkit.dispatchCommand(Bukkit.java:980) ~[paper-api-1.19.4-R0.1-SNAPSHOT.jar:?]
	at lol.pyr.znpcsplus.interaction.types.ConsoleCommandAction.run(ConsoleCommandAction.java:18) ~[ZNPCsPlus-2.0.0.jar:?]
	at lol.pyr.znpcsplus.interaction.InteractionPacketListener.onPacketReceive(InteractionPacketListener.java:29) ~[ZNPCsPlus-2.0.0.jar:?]
	at lol.pyr.znpcsplus.lib.packetevents.api.event.PacketListener$1.onPacketReceive(PacketListener.java:41) ~[ZNPCsPlus-2.0.0.jar:?]
	at lol.pyr.znpcsplus.lib.packetevents.api.event.PacketReceiveEvent.call(PacketReceiveEvent.java:45) ~[ZNPCsPlus-2.0.0.jar:?]
	at lol.pyr.znpcsplus.lib.packetevents.api.event.EventManager.callEvent(EventManager.java:52) ~[ZNPCsPlus-2.0.0.jar:?]
	at lol.pyr.znpcsplus.lib.packetevents.api.util.PacketEventsImplHelper.handleServerBoundPacket(PacketEventsImplHelper.java:82) ~[ZNPCsPlus-2.0.0.jar:?]
	at lol.pyr.znpcsplus.lib.packetevents.impl.injector.handlers.PacketEventsDecoder.read(PacketEventsDecoder.java:51) ~[ZNPCsPlus-2.0.0.jar:?]
	at lol.pyr.znpcsplus.lib.packetevents.impl.injector.handlers.PacketEventsDecoder.decode(PacketEventsDecoder.java:58) ~[ZNPCsPlus-2.0.0.jar:?]
	at lol.pyr.znpcsplus.lib.packetevents.impl.injector.handlers.PacketEventsDecoder.decode(PacketEventsDecoder.java:35) ~[ZNPCsPlus-2.0.0.jar:?] <40 internal lines>
[23:11:26 WARN]: [lol.pyr.znpcsplus.lib.packetevents.api.PacketEventsAPI] PacketEvents caught an unhandled exception while calling your listener.
java.lang.IllegalStateException: Asynchronous command dispatch!
	at org.spigotmc.AsyncCatcher.catchOp(AsyncCatcher.java:16) ~[paper-1.19.4.jar:git-Paper-466]
	at org.bukkit.craftbukkit.v1_19_R3.CraftServer.dispatchCommand(CraftServer.java:882) ~[paper-1.19.4.jar:git-Paper-466]
	at org.bukkit.Bukkit.dispatchCommand(Bukkit.java:980) ~[paper-api-1.19.4-R0.1-SNAPSHOT.jar:?]
	at lol.pyr.znpcsplus.interaction.types.ConsoleCommandAction.run(ConsoleCommandAction.java:18) ~[ZNPCsPlus-2.0.0.jar:?]
	at lol.pyr.znpcsplus.interaction.InteractionPacketListener.onPacketReceive(InteractionPacketListener.java:29) ~[ZNPCsPlus-2.0.0.jar:?]
	at lol.pyr.znpcsplus.lib.packetevents.api.event.PacketListener$1.onPacketReceive(PacketListener.java:41) ~[ZNPCsPlus-2.0.0.jar:?]
	at lol.pyr.znpcsplus.lib.packetevents.api.event.PacketReceiveEvent.call(PacketReceiveEvent.java:45) ~[ZNPCsPlus-2.0.0.jar:?]
	at lol.pyr.znpcsplus.lib.packetevents.api.event.EventManager.callEvent(EventManager.java:52) ~[ZNPCsPlus-2.0.0.jar:?]
	at lol.pyr.znpcsplus.lib.packetevents.api.util.PacketEventsImplHelper.handleServerBoundPacket(PacketEventsImplHelper.java:82) ~[ZNPCsPlus-2.0.0.jar:?]
	at lol.pyr.znpcsplus.lib.packetevents.impl.injector.handlers.PacketEventsDecoder.read(PacketEventsDecoder.java:51) ~[ZNPCsPlus-2.0.0.jar:?]
	at lol.pyr.znpcsplus.lib.packetevents.impl.injector.handlers.PacketEventsDecoder.decode(PacketEventsDecoder.java:58) ~[ZNPCsPlus-2.0.0.jar:?]
	at lol.pyr.znpcsplus.lib.packetevents.impl.injector.handlers.PacketEventsDecoder.decode(PacketEventsDecoder.java:35) ~[ZNPCsPlus-2.0.0.jar:?] <40 internal lines>

Npc center and teleport command not working

Whenever I use npc center on an npc or Teleport it facing the other direction. It ends up looking at the same wrong direction everytime the servers lightning updates or if i run the command //fixlighting from FastAsyncWorldEdit

Server Version 1.12.2 Paper
Plugin version 2.0.0-SNAPSHOT

All of them looking at the wrong direction: (the center command does make them face the right location but once the lightning updates they go back to looking in the wrong place)

Entity Teleport in Folia

Server version:
This server is running Folia version git-Folia-"d34fb87" (MC: 1.19.4) (Implementing API version 1.19.4-R0.1-SNAPSHOT) (Git: d34fb87)
You are 14 version(s) behind
Download the new version at: https://papermc.io/downloads
Previous version: git-Folia-"32417a2" (MC: 1.19.4)

Issue:
Teleport issue(You need to use "Entity#teleportAsync()": https://paste.md-5.net/edubiyibep.bash
Commands feed back not working(only in the final command. Example /znpcs) The commando not show nothing in Folia

Originally posted by @Aitooor in #38 (comment)

NPE sometimes when spawning NPC

(copied from report on discord)

I have a problem with the plugin, when the players are not near the NPC, they sometimes disappear. This happens in most cases and is solved by restarting the server.

Caused by Reflections sometimes picking up UUID getOriginWorld() instead of UUID getUUID

Rewrite conversations system (deprecate?)

Console spam

https://mclo.gs/ZHfL9qm

I think everything is clear here anyway

Occasionally some NPCs disappear

It happens that occasionally some NPCs disappear. I don't think it shows any error.

ZNPCsPlus version: 1.0.5
Server: Pufferfish-59 (MC: 1.19.3)

[Folia] Dispatch Command error

Branch: 2.0.0
Commit used: 5ae5ca2

Error lines: https://paste.md-5.net/awuvequqiv.bash

You need to use Global Region for dispatch commands in Folia Server#dispatchCommand

Example:

plugin.getServer().getGlobalRegionScheduler().run(plugin, scheduledTask ->
    plugin.getServer().dispatchCommand(plugin.getServer().getConsoleSender(), command)
);

Dependency Hook

I was wondering if there was a new dependency that I can hook into for one of my plugins.
Thought it would be in the form of

        <dependency>
            <groupId>lol.pyr.ZNPCsPlus</groupId>
            <artifactId>ZNPCsPlus</artifactId>
            <version>1.0.5</version>
            <scope>provided</scope>
        </dependency>

But this doesn't work. The previous one I had for the old plugin was

        <dependency>
            <groupId>io.github.znetworkw.znpcservers</groupId>
            <artifactId>znpcservers</artifactId>
            <version>3.6</version>
        </dependency>

#103: Cannot click through holograms

Self-explanatory.

https://www.youtube.com/watch?v=4rWfcDRdlWU

whats better version for stability?

dev build or stable 1.0.8 better for stability?

/znpcs glow is broken (as always...)

https://pastebin.com/qVtRMCYc

this is the error that occurs when I turn on /znpcs glow without specifying the glow color. (the NPC disappears and everything breaks)
However, even if I specify it, no glow appears in the NPC

(otherwise nothing new)

Cannot invoke "java.util.UUID.getMostSignificantBits()" because "uuid" is null

https://yaso.su/p6ncaE0V

I tried to unload the TAB plugin using PluginManager, but it didn't help.

Purpur 1.19.4, ZNPCsPlus 1.0,8

Unable to build with Jitpack

See log https://www.jitpack.io/com/github/Pyrbu/ZNPCsPlus/1.0.5/build.log

Maintained with ?

Figure it's supposed to be a heart in Unicode? Maybe just use <3 instead.

Error on startup on old versions

Here's the error:

https://mclo.gs/OO9Qg7i

(looks like #5)

[1.0.4] Console colors

Used panel: pterodactyl (default)
Server Jar: Pufferfish #67

I cant add " - " to my npcs

symbol - doesn't work, it is treated as whitespace

NullPointerException

I'm getting this error on my first server:
[19:02:40 WARN]: [ZNPCsPlus] Plugin ZNPCsPlus v1.0.5 generated an exception while executing task 8960
java.lang.NullPointerException: null

All NPCs have disappeared and are not visible.

---

Second server: Only some NPCs are visible.
Error: https://pastebin.com/raw/NG7tdtU9

---

ZNPCsPlus version: 1.0.5
Server: Pufferfish-61 (1.19.3)

Allay does not support actions

Self-explanatory.

Testing on build #94 with playercommand action.

Action order inconsistent

The order of the actions being executed is incorrect. Although the second action is a player command action, it should still execute before the third one, or the third action should somehow wait for the second action to be completed.

Also, adding a delay that can be set such that the next action runs after that many ticks would be better option to fix this issue.

NPCs teleport

Can you implement an NPC teleport by coordinates x y z (like: /znpcs move)?

Hologram issue (or not only hologram?)

https://pastebin.com/NEBV3M5V

when the player enters on 1.12.2 server with 1.12.2 client, an error pops up and the hologram above the NPC is not displayed.

and this - https://pastebin.com/TuGuUsMN happens when player join with 1.17.1 client (this may not happen, or cah happen with any player on join)