NeoForge server keeps crashing on startup

Hello, I am new to creating Minecraft servers. When I run the bat file, it starts and then immediately crashes. Any help is greatly appreciated. Here are the logs.


Time: 2025-04-19 15:22:07
Description: Exception in server tick loop

java.lang.IllegalStateException: Failed to initialize server
at TRANSFORMER/minecraft@1.21.1/net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:671) ~[server-1.21.1-20240808.144430-srg.jar%23119!/:?] {re:classloading,pl:accesstransformer:B}
at TRANSFORMER/minecraft@1.21.1/net.minecraft.server.MinecraftServer.lambda$spin$2(MinecraftServer.java:267) ~[server-1.21.1-20240808.144430-srg.jar%23119!/:?] {re:classloading,pl:accesstransformer:B}
at java.base/java.lang.Thread.run(Thread.java:1583) [?:?] {}

-- System Details --
Details:
Minecraft Version: 1.21.1
Minecraft Version ID: 1.21.1
Operating System: Windows Server 2025 (amd64) version 10.0
Java Version: 21.0.7, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode, sharing), Oracle Corporation
Memory: 135744400 bytes (129 MiB) / 469762048 bytes (448 MiB) up to 17012097024 bytes (16224 MiB)
CPUs: 16
Processor Vendor: AuthenticAMD
Processor Name: AMD Ryzen 7 5700G with Radeon Graphics
Identifier: AuthenticAMD Family 25 Model 80 Stepping 0
Microarchitecture: Zen 3
Frequency (GHz): 3.79
Number of physical packages: 1
Number of physical CPUs: 8
Number of logical CPUs: 16
Graphics card #0 name: Microsoft Basic Display Adapter
Graphics card #0 vendor: Microsoft
Graphics card #0 VRAM (MiB): 0.00
Graphics card #0 deviceId: VideoController1
Graphics card #0 versionInfo: 10.0.26100.1
Memory slot #0 capacity (MiB): 32768.00
Memory slot #0 clockSpeed (GHz): 2.67
Memory slot #0 type: DDR4
Memory slot #1 capacity (MiB): 32768.00
Memory slot #1 clockSpeed (GHz): 2.67
Memory slot #1 type: DDR4
Virtual memory max (MiB): 74621.84
Virtual memory used (MiB): 8470.01
Swap memory total (MiB): 9728.00
Swap memory used (MiB): 0.00
Space in storage for jna.tmpdir (MiB): <path not set>
Space in storage for org.lwjgl.system.SharedLibraryExtractPath (MiB): <path not set>
Space in storage for io.netty.native.workdir (MiB): <path not set>
Space in storage for java.io.tmpdir (MiB): available: 1874833.13, total: 1906937.00
Space in storage for workdir (MiB): available: 1874833.13, total: 1906937.00
JVM Flags: 0 total;
Server Running: true
Active Data Packs: vanilla, mod_data, mod/neoforge
Available Data Packs: bundle, trade_rebalance, vanilla, mod/neoforge, mod_data
Enabled Feature Flags: minecraft:vanilla
World Generation: Stable
World Seed: 2015606532547647
Is Modded: Definitely; Server brand changed to 'neoforge'
Type: Dedicated Server (map_server.txt)
ModLauncher: 11.0.4+main.d2e20e43
ModLauncher launch target: forgeserver
ModLauncher services:
sponge-mixin-0.15.2+mixin.0.8.7.jar mixin PLUGINSERVICE
loader-4.0.38.jar slf4jfixer PLUGINSERVICE
loader-4.0.38.jar runtime_enum_extender PLUGINSERVICE
at-modlauncher-10.0.1.jar accesstransformer PLUGINSERVICE
loader-4.0.38.jar runtimedistcleaner PLUGINSERVICE
modlauncher-11.0.4.jar mixin TRANSFORMATIONSERVICE
modlauncher-11.0.4.jar fml TRANSFORMATIONSERVICE
FML Language Providers:
javafml@4.0
lowcodefml@4.0
minecraft@4.0
Mod List:
server-1.21.1-20240808.144430-srg.jar |Minecraft |minecraft |1.21.1 |Manifest: NOSIGNATURE
neoforge-21.1.155-universal.jar |NeoForge |neoforge |21.1.155 |Manifest: NOSIGNATURE
Crash Report UUID: 98fb504f-4d65-4978-a1db-ca674fec6ae9
FML: 4.0.38
NeoForge: 21.1.155