Cannot join Mohist server closed fixed

Help I cant go into my modded MOHIST server

I dont think mods are the problem as far as i can make out

Pls help

Oh and i removed my ip for very obvious reasons

Log vv

[15:06:41] [User Authenticator #1/INFO] [net.minecraft.network.login.ServerLoginNetHandler/]: UUID of player matjaz3002 is 775df371-4dbe-3a73-ba9c-1a6f5cf00767

[15:06:41] [Netty Epoll Server IO #1/INFO] [net.minecraftforge.fml.network.FMLHandshakeHandler/]: Client attempting to join with 11 mods : minecraft, archaicguns, obfuscate, forge, cgm, boss_tools, cfm, latex, citadel, iceandfire, vehicle

[15:06:46] [Server thread/INFO] [net.minecraft.server.management.PlayerList/]: matjaz3002[/YOU FOOL I CENSORED IT] logged in with entity id 247 at (214.5, 64, 83.5)

[15:06:46] [Netty Epoll Server IO #1/WARN] [io.netty.channel.DefaultChannelPipeline/]: An exceptionCaught() event was fired, and it reached at the tail of the pipeline. It usually means the last handler in the pipeline did not handle the exception.

java.nio.channels.ClosedChannelException: null

at io.netty.channel.AbstractChannel$AbstractUnsafe.write(...)(Unknown Source) ~[server-1.16.5-20210115.111550-extra.jar:?]

[15:06:47] [Server thread/INFO] [net.minecraft.network.play.ServerPlayNetHandler/]: matjaz3002 lost connection: Internal Exception: io.netty.handler.codec.DecoderException: java.lang.IndexOutOfBoundsException: Index 273 out of bounds for length 48

[15:06:47] [Server thread/INFO] [net.minecraft.server.dedicated.DedicatedServer/]: matjaz3002 left the game

[15:07:23] [User Authenticator #2/INFO] [net.minecraft.network.login.ServerLoginNetHandler/]: UUID of player matjaz3002 is 775df371-4dbe-3a73-ba9c-1a6f5cf00767

[15:07:28] [Netty Epoll Server IO #2/INFO] [net.minecraftforge.fml.network.FMLHandshakeHandler/]: Client attempting to join with 11 mods : minecraft, archaicguns, obfuscate, forge, cgm, boss_tools, cfm, latex, citadel, iceandfire, vehicle

[15:07:31] [Server thread/INFO] [net.minecraft.server.management.PlayerList/]: matjaz3002[/YOU FOOL I CENSORED IT] logged in with entity id 258 at (214.5, 64, 83.5)

[15:07:31] [Server thread/INFO] [net.minecraft.network.play.ServerPlayNetHandler/]: matjaz3002 lost connection: Internal Exception: io.netty.handler.codec.DecoderException: java.lang.IndexOutOfBoundsException: Index 273 out of bounds for length 48

[15:07:31] [Server thread/INFO] [net.minecraft.server.dedicated.DedicatedServer/]: matjaz3002 left the game

[15:07:37] [User Authenticator #3/INFO] [net.minecraft.network.login.ServerLoginNetHandler/]: UUID of player matjaz3002 is 775df371-4dbe-3a73-ba9c-1a6f5cf00767

[15:07:37] [Netty Epoll Server IO #3/INFO] [net.minecraftforge.fml.network.FMLHandshakeHandler/]: Client attempting to join with 11 mods : minecraft, archaicguns, obfuscate, forge, cgm, boss_tools, cfm, latex, citadel, iceandfire, vehicle

[15:07:41] [Server thread/INFO] [net.minecraft.server.management.PlayerList/]: matjaz3002[/YOU FOOL I CENSORED IT] logged in with entity id 259 at (214.5, 64, 83.5)

[15:07:41] [Netty Epoll Server IO #3/WARN] [io.netty.channel.DefaultChannelPipeline/]: An exceptionCaught() event was fired, and it reached at the tail of the pipeline. It usually means the last handler in the pipeline did not handle the exception.

java.nio.channels.ClosedChannelException: null

at io.netty.channel.AbstractChannel$AbstractUnsafe.write(...)(Unknown Source) ~[server-1.16.5-20210115.111550-extra.jar:?]

[15:07:42] [Server thread/INFO] [net.minecraft.server.dedicated.DedicatedServer/]: matjaz3002 has made the advancement [Ice and Fire]

[15:07:42] [Server thread/INFO] [net.minecraft.network.play.ServerPlayNetHandler/]: matjaz3002 lost connection: Internal Exception: io.netty.handler.codec.DecoderException: java.lang.IndexOutOfBoundsException: Index 273 out of bounds for length 48

[15:07:42] [Server thread/INFO] [net.minecraft.server.dedicated.DedicatedServer/]: matjaz3002 left the game

pl0x help

ty

!EDIT! My friend(s) have the exact same mods and the exact same problem. Help help help

Edit 2:

Mods list:

[1.16.5] Turned Remastered 1.27 Final Part 1.1.jar

archaicguns-1.1-1.16.5.jar

cfm-7.0.0pre22-1.16.3.jar

cgm-1.2.6-1.16.5.jar

citadel-1.8.1-1.16.5.jar

iceandfire-2.1.10-1.16.5.jar

obfuscate-0.6.3-1.16.5.jar

Space-BossTools-1.16.5-5.5e.jar

vehicle-mod-0.45.2-1.16.3.jar

Plugins list (get ready):

AdvancedBan-Bundle-2.3.0-RELEASE.jar

AuthMe-5.6.0-SNAPSHOT.jar

Clearlag.jar

EssentialsX-2.19.4.jar

HomePlus.jar

InvSee.jar

NoPlugins.jar

orebfuscator-plugin-5.3.0.jar

ProtocolLib.jar

RampenDrills.jar

SimpleTpa.jar

StaffChatReloaded.jar

SuperVanish-6.2.6.jar

Vault.jar

wild-0.17.3.jar

WildSex.jar

Quote from Troy58

find out the servers software if its forge switch to forge1.19 or whatever version it is

if its not i dont have enough skill to solve it sorry if it doesnt work

It's mohist, as I've mentioned at the very top of the post. And the latest mohist version is 1.18.2

It's fine, but i would need it asap my friends arent patient lol

Quote from Troy58

OW SHIT sorry dude i only have 1 braincell functionining sorry search on yt maybe?

Searched everything. Went to page 2 of google searches. Nowhere. Oh and i was wrong in the title, I meant I cant JOIN the server, it starts fine.

Quote from Heelyx23

What error do you get?

Sometimes it says the existing connection was forcibly closed by the remote host, but most of the time it throws an "Internal Exception: io.netty.handler.codec.DecoderException:java.lang.IndexOutOfBoundsException: Index 273 out of bounds for length 48

i tried everything from regenerating the world to reinstalling my whole launcher and tis not only a me problem, my friends have the same problem too

Any help yet? please?

Is it normal for it to take this long to answer?

Quote from Heelyx23

No one is here 24/7 responding to your issue, so you need to be patient.

Make sure that the EXACT same mods installed on both your PC and the server. It is not enough to simply have the same mods installed, they must also be installed in the exact same version. Likewise, the version of the mod loader (Fabric/Forge) must be identical.

If you are SURE the mods are the same, follow this article.

Exactly what I did as a last resort.