System Information
| Field | Value |
|---|---|
| Operating System | Linux - Debian GNU/Linux 13 on x86_64 |
| Product | AMP ‘Deimos’ v2.7.2.0 (Mainline) |
| Virtualization | Docker |
| Application | Minecraft |
| Module | MinecraftModule |
| Running in Container | Yes |
| Current State | Failed |
Problem Description
Issue
The server was working normally before. Nobody played on it for some time and I did not modify anything. I did not update plugins, change the world, edit configuration files, or install anything.
When I started the server again, it suddenly failed to load the world.
I tested:
- Paper 26.1.2 and 26.2
- Java 25
- Safe mode (–safeMode)
- Starting with 0 plugins
- Restoring level.dat from a backup
The problem remains the same.
The server always fails with:
java.lang.IllegalStateException: Overworld settings missing
and
Unable to read or access the world gen settings file.
Reproduction Steps
- Leave the server offline for some time.
- Start the server without changing any files, plugins, or configuration.
- The server fails to start with “Overworld settings missing”.