Can't run server

[ZeezeeWasTaken]

Server crashes with this error:
Description: Unexpected error

java.lang.NullPointerException: Cannot read field "field_13073" because "$$0" is null
at Not Enough Crashes deobfuscated stack trace.(1.18.1+build.22)
at net.minecraft.world.dimension.DimensionType.equals(DimensionType:350)
at net.id.aether.util.RegistryUtil.dimensionMatches(RegistryUtil.java:14)
at net.minecraft.client.render.BackgroundRenderer.redirect$hak000$adjustVoidVector(BackgroundRenderer:5534)
at net.minecraft.client.render.BackgroundRenderer.render(BackgroundRenderer:143)
at net.minecraft.client.render.WorldRenderer.render(WorldRenderer:1238)
at net.minecraft.client.render.GameRenderer.renderWorld(GameRenderer:1031)
at net.minecraft.client.render.GameRenderer.render(GameRenderer:811)
at net.minecraft.client.MinecraftClient.render(MinecraftClient:1117)
at net.minecraft.client.MinecraftClient.run(MinecraftClient:733)
at net.minecraft.client.main.Main.main(Main:238)
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:568)
at net.fabricmc.loader.impl.game.minecraft.MinecraftGameProvider.launch(MinecraftGameProvider.java:416)
at net.fabricmc.loader.impl.launch.knot.Knot.launch(Knot.java:77)
at net.fabricmc.loader.impl.launch.knot.KnotClient.main(KnotClient.java:23)

[natanfudge]

Not a NEC issue.