[22:11:35] [Server thread/ERROR]: Encountered an unexpected exception
java.lang.AbstractMethodError: Receiver class net.minecraft.world.level.levelgen.structure.pools.StructureTemplatePool does not define or inherit an implementation of the resolved method 'abstract it.unimi.dsi.fastutil.objects.ObjectArrayList getTemplates()' of interface com.kitisplode.golemfirststonemod.mixin.MixinStructurePoolAccessor.
at com.kitisplode.golemfirststonemod.structure.ModStructures.addBuildingToPool(ModStructures.java:45) ~[forge_golemfirststonemod-0.0.5-1.20.1.jar%23393!/:0.0.5-1.20.1]
at com.kitisplode.golemfirststonemod.structure.ModStructures.registerJigsaws(ModStructures.java:30) ~[forge_golemfirststonemod-0.0.5-1.20.1.jar%23393!/:0.0.5-1.20.1]
at com.kitisplode.golemfirststonemod.GolemFirstStoneMod.onServerAboutToStartEvent(GolemFirstStoneMod.java:85) ~[forge_golemfirststonemod-0.0.5-1.20.1.jar%23393!/:0.0.5-1.20.1]
at com.kitisplode.golemfirststonemod.GolemFirstStoneMod_onServerAboutToStartEvent_ServerAboutToStartEvent.invoke(.dynamic) ~[forge_golemfirststonemod-0.0.5-1.20.1.jar%23393!/:0.0.5-1.20.1]
at net.minecraftforge.eventbus.ASMEventHandler.invoke(ASMEventHandler.java:73) ~[eventbus-6.0.5.jar%2387!/:?]
at net.minecraftforge.eventbus.EventBus.post(EventBus.java:315) ~[eventbus-6.0.5.jar%2387!/:?]
at net.minecraftforge.eventbus.EventBus.post(EventBus.java:296) ~[eventbus-6.0.5.jar%2387!/:?]
at net.minecraftforge.server.ServerLifecycleHooks.handleServerAboutToStart(ServerLifecycleHooks.java:98) ~[forge-1.20.1-47.1.44-universal.jar%23497!/:?]
at net.minecraft.client.server.IntegratedServer.m_7038(IntegratedServer.java:62) ~[client-1.20.1-20230612.114412-srg.jar%23492!/:?]
at net.minecraft.server.MinecraftServer.m_130011(MinecraftServer.java:634) ~[client-1.20.1-20230612.114412-srg.jar%23492!/:?]
at net.minecraft.server.MinecraftServer.m_206580_(MinecraftServer.java:251) ~[client-1.20.1-20230612.114412-srg.jar%23492!/:?]
at java.lang.Thread.run(Thread.java:833) ~[?:?]
[22:11:35] [Server thread/WARN]: Suppressing EXPERIMENTAL level lifecycle
[22:11:35] [Server thread/FATAL]: Preparing crash report with UUID 5e52d9e6-526b-4515-b710-cf350f54e87a
[22:11:35] [Server thread/ERROR]: This crash report has been saved to: C:\Users\Admin\curseforge\minecraft\Instances\Testing Environment\crash-reports\crash-2023-08-26_22.11.35-server.txt
[22:11:35] [Server thread/INFO]: Stopping server
[22:11:35] [Server thread/INFO]: Saving players
[22:11:35] [Server thread/INFO]: Saving worlds
[22:11:35] [Server thread/ERROR]: Exception stopping the server
java.lang.NullPointerException: Cannot invoke "net.minecraft.server.level.ServerLevel.m_6857_()" because "serverlevel2" is null
at net.minecraft.server.MinecraftServer.m_129885_(MinecraftServer.java:513) ~[client-1.20.1-20230612.114412-srg.jar%23492!/:?]
at net.minecraft.server.MinecraftServer.m_7041_(MinecraftServer.java:584) ~[client-1.20.1-20230612.114412-srg.jar%23492!/:?]
at net.minecraft.client.server.IntegratedServer.m_7041_(IntegratedServer.java:187) ~[client-1.20.1-20230612.114412-srg.jar%23492!/:?]
at net.minecraft.server.MinecraftServer.m_130011_(MinecraftServer.java:689) ~[client-1.20.1-20230612.114412-srg.jar%23492!/:?]
at net.minecraft.server.MinecraftServer.m_206580_(MinecraftServer.java:251) ~[client-1.20.1-20230612.114412-srg.jar%23492!/:?]
at java.lang.Thread.run(Thread.java:833) ~[?:?]