Startup Issue with Minecraft - cant log to server

System Information

Field Value
Operating System Linux - Debian GNU/Linux 12 on x86_64
Product AMP ‘Callisto’ v2.5.0.0 (Mainline)
Virtualization Docker
Application Minecraft
Module MinecraftModule
Running in Container Yes
Current State Ready

Problem Description


thats say internal exception: io.netty.handler.codec.DecoderException: java.lang.NuIIPointerException: cannot invoke “$PacketSet.m_178327_(int,” because the return value of “java.util.Map.get(Object)” is null

Reproduction Steps

  • launch the server in hostinger
  • launch the mods minecraft with cursforge
  • launch the game with launcher minecrtaft
  • launch the server
  • error message

We’re not Hostinger, this is the forum for AMP.
I would suggest checking that you’ve uploaded the server version of the modpack, since copying mods from your client usually won’t work right with servers. (and be sure that you’ve selected the right server type and version)