xWallen

yes it does, I have tried deleting the world data several times but it keeps throwing me this error.

[26.10 10:24:18] [Server] [main/ERROR] [minecraft/SaveFormat]: Exception reading ./world/level.dat [26.10 10:24:18] [Server] java.lang.IllegalStateExceptionNot a JSON Object: null [26.10 10:24:18] [Server] at com.google.gson.JsonElement.getAsJsonObject(JsonElement.java:90) ~[server-1.16.5-20210115.111550-extra.jar:?] {} [26.10 10:24:18] [Server] at net.minecraft.util.registry.WorldSettingsImport$IResourceAccess$1.func_241879_a(WorldSettingsImport.java:193) ~[?:?] {re:classloading} [26.10 10:24:18] [Server] at net.minecraft.util.registry.WorldSettingsImport.func_241805_a_(WorldSettingsImport.java:131) ~[?:?] {re:classloading} [26.10 10:24:18] [Server] at net.minecraft.util.registry.WorldSettingsImport.func_240885_a_(WorldSettingsImport.java:105) ~[?:?] {re:classloading} [26.10 10:24:18] [Server] at com.mojang.serialization.DataResult.lambda$flatMap$10(DataResult.java:138) ~[?:?] {re:classloading} [26.10 10:24:18] [Server] at com.mojang.datafixers.util.Either$Left.map(Either.java:38) ~[?:?] {re:classloading} [26.10 10:24:18] [Server] at com.mojang.serialization.DataResult.flatMap(DataResult.java:136) ~[?:?] {re:classloading} [26.10 10:24:18] [Server] at net.minecraft.util.registry.WorldSettingsImport.func_241797_a_(WorldSettingsImport.java:104) ~[?:?] {re:classloading} [26.10 10:24:18] [Server] at net.minecraft.util.registry.SimpleRegistryCodec.func_240862_a_(SourceFile:35) ~[?:?] {re:classloading} [26.10 10:24:18] [Server] at com.mojang.serialization.DataResult.lambda$null$13(DataResult.java:143) ~[?:?] {re:classloading} [26.10 10:24:18] [Server] at java.util.Optional.map(Optional.java:215) ~[?:1.8.0_{} [26.10 10:24:18] [Server] at com.mojang.serialization.DataResult.lambda$flatMap$15(DataResult.java:142) ~[?:?] {re:classloading} [26.10 10:24:18] [Server] at com.mojang.datafixers.util.Either$Right.map(Either.java:99) ~[?:?] {re:classloading} [26.10 10:24:18] [Server] at com.mojang.serialization.DataResult.flatMap(DataResult.java:136) ~[?:?] {re:classloading} [26.10 10:24:18] [Server] at net.minecraft.util.registry.SimpleRegistryCodec.decode(SourceFile:35) ~[?:?] {re:classloading} [26.10 10:24:18] [Server] at com.mojang.serialization.Decoder$2.decode(Decoder.java:63) ~[?:?] {re:classloading} [26.10 10:24:18] [Server] at com.mojang.serialization.Codec$2.decode(Codec.java:71) ~[?:?] {re:classloading} [26.10 10:24:18] [Server] at com.mojang.serialization.Decoder.parse(Decoder.java:18) ~[?:?] {re:classloading,re:mixin} [26.10 10:24:18] [Server] at com.mojang.serialization.codecs.FieldDecoder.decode(FieldDecoder.java:29) ~[?:?] {re:classloading} [26.10 10:24:18] [Server] at com.mojang.serialization.MapCodec$1.decode(MapCodec.java:34) ~[?:?] {re:classloading} [26.10 10:24:18] [Server] at com.mojang.serialization.codecs.RecordCodecBuilder$Instance$5.decode(RecordCodecBuilder.java:324) ~[?:?] {re:classloading} [26.10 10:24:18] [Server] at com.mojang.serialization.codecs.RecordCodecBuilder$2.decode(RecordCodecBuilder.java:107) ~[?:?] {re:classloading} [26.10 10:24:18] [Server] at com.mojang.serialization.MapDecoder.lambda$compressedDecode$0(MapDecoder.java:52) ~[?:?] {re:classloading} [26.10 10:24:18] [Server] at com.mojang.serialization.DataResult.lambda$flatMap$10(DataResult.java:138) ~[?:?] {re:classloading} [26.10 10:24:18] [Server] at com.mojang.datafixers.util.Either$Left.map(Either.java:38) ~[?:?] {re:classloading} [26.10 10:24:18] [Server] at com.mojang.serialization.DataResult.flatMap(DataResult.java:136) ~[?:?] {re:classloading} [26.10 10:24:18] [Server] at com.mojang.serialization.MapDecoder.compressedDecode(MapDecoder.java:52) ~[?:?] {re:classloading} [26.10 10:24:18] [Server] at com.mojang.serialization.MapCodec$MapCodecCodec.decode(MapCodec.java:91) ~[?:?] {re:classloading} [26.10 10:24:18] [Server] at com.mojang.serialization.Decoder$1.decode(Decoder.java:49) ~[?:?] {re:classloading} [26.10 10:24:18] [Server] at com.mojang.serialization.Codec$2.decode(Codec.java:71) ~[?:?] {re:classloading} [26.10 10:24:18] [Server] at com.mojang.serialization.Decoder.decode(Decoder.java:22) ~[?:?] {re:classloading,re:mixin} [26.10 10:24:18] [Server] at com.mojang.serialization.Decoder.parse(Decoder.java:26) ~[?:?] {re:classloading,re:mixin} [26.10 10:24:18] [Server] at net.minecraft.world.storage.SaveFormat.func_237259_a_(SaveFormat.java:99) ~[?:?] {re:classloading,pl:runtimedistcleaner:A} [26.10 10:24:18] [Server] at net.minecraft.world.storage.SaveFormat.lambda$getReader$4(SaveFormat.java:197) ~[?:?] {re:classloading,pl:runtimedistcleaner:A} [26.10 10:24:18] [Server] at net.minecraft.world.storage.SaveFormat.func_237266_a_(SaveFormat.java:158) ~[?:?] {re:classloading,pl:runtimedistcleaner:A} [26.10 10:24:18] [Server] at net.minecraft.world.storage.SaveFormat.func_237263_a_(SaveFormat.java:63) ~[?:?] {re:classloading,pl:runtimedistcleaner:A} [26.10 10:24:18] [Server] at net.minecraft.world.storage.SaveFormat$LevelSave.func_237284_a_(SaveFormat.java:324) ~[?:?] {re:mixin,pl:runtimedistcleaner:A,re:classloading,pl:runtimedistcleaner:A} [26.10 10:24:18] [Server] at net.minecraft.server.Main.main(Main.java:139) ~[?:?] {re:classloading} [26.10 10:24:18] [Server] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_{} [26.10 10:24:18] [Server] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_{} [26.10 10:24:18] [Server] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_{} [26.10 10:24:18] [Server] at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_{} [26.10 10:24:18] [Server] at net.minecraftforge.fml.loading.FMLServerLaunchProvider.lambda$launchService$0(FMLServerLaunchProvider.java:51) ~[custom.jar:36.{} [26.10 10:24:18] [Server] at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37) [modlauncher-8.0.9.jar:?] {} [26.10 10:24:18] [Server] at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:54) [modlauncher-8.0.9.jar:?] {} [26.10 10:24:18] [Server] at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:72) [modlauncher-8.0.9.jar:?] {} [26.10 10:24:18] [Server] at cpw.mods.modlauncher.Launcher.run(Launcher.java:82) [modlauncher-8.0.9.jar:?] {re:classloading} [26.10 10:24:18] [Server] at cpw.mods.modlauncher.Launcher.main(Launcher.java:66) [modlauncher-8.0.9.jar:?] {re:classloading} [26.10 10:24:18] [Server] at net.minecraftforge.server.ServerMain$Runner.runLauncher(ServerMain.java:63) [custom.jar:?] {} [26.10 10:24:18] [Server] at net.minecraftforge.server.ServerMain$Runner.access$100(ServerMain.java:60) [custom.jar:?] {} [26.10 10:24:18] [Server] at net.minecraftforge.server.ServerMain.main(ServerMain.java:57) [custom.jar:?] {} [26.10 10:24:18] [Server] [main/ERROR] [minecraft/SaveFormat]: Exception reading ./world/level.dat_old [26.10 10:24:18] [Server] java.lang.IllegalStateExceptionNot a JSON Object: null [26.10 10:24:18] [Server] at com.google.gson.JsonElement.getAsJsonObject(JsonElement.java:90) ~[server-1.16.5-20210115.111550-extra.jar:?] {} [26.10 10:24:18] [Server] at net.minecraft.util.registry.WorldSettingsImport$IResourceAccess$1.func_241879_a(WorldSettingsImport.java:193) ~[?:?] {re:classloading} [26.10 10:24:18] [Server] at net.minecraft.util.registry.WorldSettingsImport.func_241805_a_(WorldSettingsImport.java:131) ~[?:?] {re:classloading} [26.10 10:24:18] [Server] at net.minecraft.util.registry.WorldSettingsImport.func_240885_a_(WorldSettingsImport.java:105) ~[?:?] {re:classloading} [26.10 10:24:18] [Server] at com.mojang.serialization.DataResult.lambda$flatMap$10(DataResult.java:138) ~[?:?] {re:classloading} [26.10 10:24:18] [Server] at com.mojang.datafixers.util.Either$Left.map(Either.java:38) ~[?:?] {re:classloading} [26.10 10:24:18] [Server] at com.mojang.serialization.DataResult.flatMap(DataResult.java:136) ~[?:?] {re:classloading} [26.10 10:24:18] [Server] at net.minecraft.util.registry.WorldSettingsImport.func_241797_a_(WorldSettingsImport.java:104) ~[?:?] {re:classloading} [26.10 10:24:18] [Server] at net.minecraft.util.registry.SimpleRegistryCodec.func_240862_a_(SourceFile:35) ~[?:?] {re:classloading} [26.10 10:24:18] [Server] at com.mojang.serialization.DataResult.lambda$null$13(DataResult.java:143) ~[?:?] {re:classloading} [26.10 10:24:18] [Server] at java.util.Optional.map(Optional.java:215) ~[?:1.8.0_{} [26.10 10:24:18] [Server] at com.mojang.serialization.DataResult.lambda$flatMap$15(DataResult.java:142) ~[?:?] {re:classloading} [26.10 10:24:18] [Server] at com.mojang.datafixers.util.Either$Right.map(Either.java:99) ~[?:?] {re:classloading} [26.10 10:24:18] [Server] at com.mojang.serialization.DataResult.flatMap(DataResult.java:136) ~[?:?] {re:classloading} [26.10 10:24:18] [Server] at net.minecraft.util.registry.SimpleRegistryCodec.decode(SourceFile:35) ~[?:?] {re:classloading} [26.10 10:24:18] [Server] at com.mojang.serialization.Decoder$2.decode(Decoder.java:63) ~[?:?] {re:classloading} [26.10 10:24:18] [Server] at com.mojang.serialization.Codec$2.decode(Codec.java:71) ~[?:?] {re:classloading} [26.10 10:24:18] [Server] at com.mojang.serialization.Decoder.parse(Decoder.java:18) ~[?:?] {re:classloading,re:mixin} [26.10 10:24:18] [Server] at com.mojang.serialization.codecs.FieldDecoder.decode(FieldDecoder.java:29) ~[?:?] {re:classloading} [26.10 10:24:18] [Server] at com.mojang.serialization.MapCodec$1.decode(MapCodec.java:34) ~[?:?] {re:classloading} [26.10 10:24:18] [Server] at com.mojang.serialization.codecs.RecordCodecBuilder$Instance$5.decode(RecordCodecBuilder.java:324) ~[?:?] {re:classloading} [26.10 10:24:18] [Server] at com.mojang.serialization.codecs.RecordCodecBuilder$2.decode(RecordCodecBuilder.java:107) ~[?:?] {re:classloading} [26.10 10:24:18] [Server] at com.mojang.serialization.MapDecoder.lambda$compressedDecode$0(MapDecoder.java:52) ~[?:?] {re:classloading} [26.10 10:24:18] [Server] at com.mojang.serialization.DataResult.lambda$flatMap$10(DataResult.java:138) ~[?:?] {re:classloading} [26.10 10:24:18] [Server] at com.mojang.datafixers.util.Either$Left.map(Either.java:38) ~[?:?] {re:classloading} [26.10 10:24:18] [Server] at com.mojang.serialization.DataResult.flatMap(DataResult.java:136) ~[?:?] {re:classloading} [26.10 10:24:18] [Server] at com.mojang.serialization.MapDecoder.compressedDecode(MapDecoder.java:52) ~[?:?] {re:classloading} [26.10 10:24:18] [Server] at com.mojang.serialization.MapCodec$MapCodecCodec.decode(MapCodec.java:91) ~[?:?] {re:classloading} [26.10 10:24:18] [Server] at com.mojang.serialization.Decoder$1.decode(Decoder.java:49) ~[?:?] {re:classloading} [26.10 10:24:18] [Server] at com.mojang.serialization.Codec$2.decode(Codec.java:71) ~[?:?] {re:classloading} [26.10 10:24:18] [Server] at com.mojang.serialization.Decoder.decode(Decoder.java:22) ~[?:?] {re:classloading,re:mixin} [26.10 10:24:18] [Server] at com.mojang.serialization.Decoder.parse(Decoder.java:26) ~[?:?] {re:classloading,re:mixin} [26.10 10:24:18] [Server] at net.minecraft.world.storage.SaveFormat.func_237259_a_(SaveFormat.java:99) ~[?:?] {re:classloading,pl:runtimedistcleaner:A} [26.10 10:24:18] [Server] at net.minecraft.world.storage.SaveFormat.lambda$getReader$4(SaveFormat.java:197) ~[?:?] {re:classloading,pl:runtimedistcleaner:A} [26.10 10:24:18] [Server] at net.minecraft.world.storage.SaveFormat.func_237266_a_(SaveFormat.java:165) ~[?:?] {re:classloading,pl:runtimedistcleaner:A} [26.10 10:24:18] [Server] at net.minecraft.world.storage.SaveFormat.func_237263_a_(SaveFormat.java:63) ~[?:?] {re:classloading,pl:runtimedistcleaner:A} [26.10 10:24:18] [Server] at net.minecraft.world.storage.SaveFormat$LevelSave.func_237284_a_(SaveFormat.java:324) ~[?:?] {re:mixin,pl:runtimedistcleaner:A,re:classloading,pl:runtimedistcleaner:A} [26.10 10:24:18] [Server] at net.minecraft.server.Main.main(Main.java:139) ~[?:?] {re:classloading} [26.10 10:24:18] [Server] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_{} [26.10 10:24:18] [Server] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_{} [26.10 10:24:18] [Server] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_{} [26.10 10:24:18] [Server] at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_{} [26.10 10:24:18] [Server] at net.minecraftforge.fml.loading.FMLServerLaunchProvider.lambda$launchService$0(FMLServerLaunchProvider.java:51) ~[custom.jar:36.{} [26.10 10:24:18] [Server] at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37) [modlauncher-8.0.9.jar:?] {} [26.10 10:24:18] [Server] at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:54) [modlauncher-8.0.9.jar:?] {}

it keeps stating that the jar file "custom.jar" cannot be found, when it is clearly in the server directory. ----- [25.10 11:37:48] [Multicraft] Received start command [25.10 11:37:48] [Multicraft] Loading server properties [25.10 11:37:48] [Multicraft] Starting server! [25.10 11:37:48] [Multicraft] Loaded config for "Special: custom.jar" [25.10 11:37:48] [Multicraft] JAR file not found, copying from global JAR directory [25.10 11:37:48] [Multicraft] Failed to copy jarfile from global JAR directory [25.10 11:37:48] [Multicraft] JAR file not found. Go to "Settings"-"Update Minecraft" to download the JAR file. [25.10 11:37:48] [Multicraft] Updating eula.txt file [25.10 11:37:48] [Server] ErrorUnable to access jarfile /custom.jar [25.10 11:37:48] [Multicraft] Server shut down (starting) [25.10 11:37:48] [Multicraft] Restarting crashed server in 2.0 seconds [25.10 11:37:48] [Multicraft] Looks like a crash, check the server console. Return value: 1

odd thing is, they cited CTM as the root cause of my issue. but even installing that did nothing to help or fix my problems.

where in the log does it state that?

I am running a server for Sponge with various Forge mods inserted, the server starts up just fine. But, Upon launching the launcher presents me with this error after going through all seven steps for loading forge. I am clueless, as are the mod developers. "The game crashed whilst initializing gameError: java.lang.NullPointerException: Initializing game" The log is as follows: