Minecraft server will not start - latest.logs are provided

OS Name/Version: Linux - Ubuntu 24.04.3 on x86_64

Product Name/Version: AMP ‘Deimos’ v2.7.2.2 (Mainline)

Problem Description:

I tried launching up my minecraft instance and this shows up: The Minecraft server repeatedly failed to start, this is not a fault with AMP - you should check your Minecraft servers log files to find out why it is unable to start.

I have ran a few minecraft instances before and this has never happend. I can provide what my latest.log says below:

[05:33:07] [main/INFO]: Loading Minecraft 26.1.2 with Fabric Loader 0.19.2
[05:33:07] [main/INFO]: Mappings not present!
[05:33:07] [main/INFO]: Loading 4 mods:
	- fabricloader 0.19.2
	   \-- mixinextras 0.5.4
	- java 25
	- minecraft 26.1.2
[05:33:07] [main/INFO]: SpongePowered MIXIN Subsystem Version=0.8.7 Source=file:/home/amp/.ampdata/instances/AuraPOS01/Minecraft/libraries/net/fabricmc/sponge-mixin/0.17.2+mixin.0.8.7/sponge-mixin-0.17.2+mixin.0.8.7.jar Service=Knot/Fabric Env=SERVER
[05:33:13] [main/INFO]: Environment: Environment[sessionHost=https://sessionserver.mojang.com, servicesHost=https://api.minecraftservices.com, profilesHost=https://api.mojang.com, name=PROD]
[05:33:14] [Worker-Main-1/ERROR]: Unable to read or access the world gen settings file! Falling back to the default settings with a random world seed. null
[05:33:14] [main/WARN]: Failed to load datapacks, can't proceed with server load. You can either fix your datapacks or reset to vanilla with --safeMode
java.util.concurrent.ExecutionException: java.lang.IllegalStateException: Overworld settings missing
	at java.base/java.util.concurrent.CompletableFuture.wrapInExecutionException(CompletableFuture.java:345)
	at java.base/java.util.concurrent.CompletableFuture.reportGet(CompletableFuture.java:440)
	at java.base/java.util.concurrent.CompletableFuture.get(CompletableFuture.java:2094)
	at knot//net.minecraft.server.Main.main(Main.java:193)
	at net.fabricmc.loader.impl.game.minecraft.MinecraftGameProvider.launch(MinecraftGameProvider.java:514)
	at net.fabricmc.loader.impl.launch.knot.Knot.launch(Knot.java:72)
	at net.fabricmc.loader.impl.launch.knot.KnotServer.main(KnotServer.java:23)
	at net.fabricmc.loader.impl.launch.server.FabricServerLauncher.main(FabricServerLauncher.java:69)
	at net.fabricmc.installer.ServerLauncher.main(ServerLauncher.java:69)
Caused by: java.lang.IllegalStateException: Overworld settings missing
	at knot//net.minecraft.world.level.levelgen.WorldDimensions.<init>(WorldDimensions.java:56)
	at knot//net.minecraft.world.level.levelgen.WorldDimensions.<init>(WorldDimensions.java:61)
	at knot//net.minecraft.world.level.storage.LevelStorageSource.lambda$getLevelDataAndDimensions$0(LevelStorageSource.java:150)
	at knot//com.mojang.serialization.DataResult$Error.mapOrElse(DataResult.java:309)
	at knot//net.minecraft.world.level.storage.LevelStorageSource.getLevelDataAndDimensions(LevelStorageSource.java:148)
	at knot//net.minecraft.server.Main.lambda$main$1(Main.java:179)
	at knot//net.minecraft.server.WorldLoader.lambda$load$2(WorldLoader.java:46)
	at java.base/java.util.concurrent.CompletableFuture$UniCompose.tryFire(CompletableFuture.java:1171)
	at java.base/java.util.concurrent.CompletableFuture$Completion.exec(CompletableFuture.java:504)
	at java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:511)
	at java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1450)
	at java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:2019)
	at java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:187)

Steps to reproduce:

  • I tried launching the server because I always have it on sleep mode but saw it wasn’t launching.
  • Went into the AMP gui and tried starting the server manually, but it didn’t start.
  • I’ve tried looking into the logs to see what is up and I am unsure of any of what it is saying.

Some help would be nice :slight_smile:, I’m trying not to lose this world. Thanks guys.