[15:36:00] [Region Scheduler Thread #2/INFO]: ddddd issued server command: /back
[15:36:00] [Region Scheduler Thread #2/INFO]: Command execution stopped due to limit (executed 1 commands)
[15:36:02] [Region Scheduler Thread #2/ERROR]: [io.papermc.paper.threadedregions.TickRegionScheduler] Region #527 centered at chunk [3, -76] in world 'world' failed to tick:
net.minecraft.ReportedException: Exception ticking world
at net.minecraft.server.MinecraftServer.tickChildren(MinecraftServer.java:1839) ~[folia-1.21.8.jar:1.21.8-6-612d9bd]
at net.minecraft.server.MinecraftServer.tickServer(MinecraftServer.java:1668) ~[folia-1.21.8.jar:1.21.8-6-612d9bd]
at io.papermc.paper.threadedregions.TickRegions$ConcreteRegionTickHandle.tickRegion(TickRegions.java:407) ~[folia-1.21.8.jar:1.21.8-6-612d9bd]
at io.papermc.paper.threadedregions.TickRegionScheduler$RegionScheduleHandle.runTick(TickRegionScheduler.java:418) ~[folia-1.21.8.jar:1.21.8-6-612d9bd]
at ca.spottedleaf.concurrentutil.scheduler.SchedulerThreadPool$TickThreadRunner.run(SchedulerThreadPool.java:546) ~[concurrentutil-0.0.3.jar:?]
at java.base/java.lang.Thread.run(Thread.java:1583) ~[?:?]
Caused by: java.lang.NullPointerException: Cannot invoke "it.unimi.dsi.fastutil.objects.ReferenceArrayList.get(int)" because "this.wrapped" is null
at it.unimi.dsi.fastutil.objects.ReferenceOpenHashSet$SetIterator.next(ReferenceOpenHashSet.java:520) ~[fastutil-8.5.15.jar:?]
at net.minecraft.server.level.ChunkMap$TrackedEntity.broadcast(ChunkMap.java:1235) ~[folia-1.21.8.jar:1.21.8-6-612d9bd]
at net.minecraft.server.level.ServerEntity.sendChanges(ServerEntity.java:232) ~[folia-1.21.8.jar:1.21.8-6-612d9bd]
at net.minecraft.server.level.ChunkMap.newTrackerTick(ChunkMap.java:1027) ~[folia-1.21.8.jar:1.21.8-6-612d9bd]
at net.minecraft.server.level.ChunkMap.tick(ChunkMap.java:1038) ~[folia-1.21.8.jar:1.21.8-6-612d9bd]
at net.minecraft.server.level.ServerChunkCache.tick(ServerChunkCache.java:512) ~[folia-1.21.8.jar:1.21.8-6-612d9bd]
at net.minecraft.server.level.ServerLevel.tick(ServerLevel.java:773) ~[folia-1.21.8.jar:1.21.8-6-612d9bd]
at net.minecraft.server.MinecraftServer.tickChildren(MinecraftServer.java:1834) ~[folia-1.21.8.jar:1.21.8-6-612d9bd]
[15:36:02] [Region shutdown thread/INFO]: [RegionShutdownThread] Awaiting scheduler termination for 60s...
[15:36:02] [Region shutdown thread/INFO]: [RegionShutdownThread] Scheduler halted
[15:36:02] [Region shutdown thread/INFO]: Stopping server