What steps will reproduce the problem?

Just use 1.20.4 folia and start you're server

What is the expected output?

[14:45:07] [Region Scheduler Thread #0/ERROR]: Thread Region Scheduler Thread #0 failed main thread check: Accessing entity state off owning region's thread
java.lang.Throwable: null
at io.papermc.paper.util.TickThread.ensureTickThread(TickThread.java:78) ~[luminol-1.20.4.jar:git-Luminol-"fed8624"]
at org.bukkit.craftbukkit.v1_20_R3.entity.CraftCreeper.getHandle(CraftCreeper.java:91) ~[luminol-1.20.4.jar:git-Luminol-"fed8624"]
at org.bukkit.craftbukkit.v1_20_R3.entity.CraftCreeper.getHandle(CraftCreeper.java:8) ~[luminol-1.20.4.jar:git-Luminol-"fed8624"]
at org.bukkit.craftbukkit.v1_20_R3.entity.CraftEntity.isInWorld(CraftEntity.java:939) ~[luminol-1.20.4.jar:git-Luminol-"fed8624"]
at org.bukkit.craftbukkit.v1_20_R3.entity.CraftEntity.isValid(CraftEntity.java:393) ~[luminol-1.20.4.jar:git-Luminol-"fed8624"]
at org.bukkit.craftbukkit.v1_20_R3.CraftRegionAccessor.lambda$getLivingEntities$2(CraftRegionAccessor.java:321) ~[luminol-1.20.4.jar:git-Luminol-"fed8624"]
at java.lang.Iterable.forEach(Iterable.java:75) ~[?:?]
at org.bukkit.craftbukkit.v1_20_R3.CraftRegionAccessor.getLivingEntities(CraftRegionAccessor.java:317) ~[luminol-1.20.4.jar:git-Luminol-"fed8624"]
at com.palmergames.bukkit.towny.tasks.MobRemovalTimerTask.run(MobRemovalTimerTask.java:96) ~[?:?]
at com.palmergames.bukkit.towny.scheduling.impl.FoliaTaskScheduler.lambda$runRepeating$6(FoliaTaskScheduler.java:87) ~[?:?]
at io.papermc.paper.threadedregions.scheduler.FoliaGlobalRegionScheduler$GlobalScheduledTask.run(FoliaGlobalRegionScheduler.java:179) ~[luminol-1.20.4.jar:?]
at io.papermc.paper.threadedregions.scheduler.FoliaGlobalRegionScheduler.tick(FoliaGlobalRegionScheduler.java:37) ~[luminol-1.20.4.jar:?]
at io.papermc.paper.threadedregions.RegionizedServer.globalTick(RegionizedServer.java:293) ~[luminol-1.20.4.jar:git-Luminol-"fed8624"]
at io.papermc.paper.threadedregions.RegionizedServer$GlobalTickTickHandle.tickRegion(RegionizedServer.java:148) ~[luminol-1.20.4.jar:git-Luminol-"fed8624"]
at io.papermc.paper.threadedregions.TickRegionScheduler$RegionScheduleHandle.runTick(TickRegionScheduler.java:404) ~[luminol-1.20.4.jar:git-Luminol-"fed8624"]
at ca.spottedleaf.concurrentutil.scheduler.SchedulerThreadPool$TickThreadRunner.run(SchedulerThreadPool.java:525) ~[luminol-1.20.4.jar:git-Luminol-"fed8624"]
at java.lang.Thread.run(Thread.java:833) ~[?:?]

Towny version

0.100.1.14

Server version

Folia 1.20.4

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