[00:14:52] [Server thread/ERROR]: Entity threw exception at Dungeon:-146.90530812726746,-60.0,-105.50695599249582
java.util.ConcurrentModificationException: null
	at java.util.LinkedHashMap$LinkedHashIterator.nextNode(LinkedHashMap.java:756) ~[?:?]
	at java.util.LinkedHashMap$LinkedKeyIterator.next(LinkedHashMap.java:778) ~[?:?]
	at net.minecraft.world.entity.ai.goal.GoalSelector.tickRunningGoals(GoalSelector.java:155) ~[?:?]
	at net.minecraft.world.entity.ai.goal.GoalSelector.tick(GoalSelector.java:148) ~[?:?]
	at net.minecraft.world.entity.Mob.serverAiStep(Mob.java:958) ~[?:?]
	at net.minecraft.world.entity.LivingEntity.aiStep(LivingEntity.java:3438) ~[?:?]
	at net.minecraft.world.entity.Mob.aiStep(Mob.java:704) ~[?:?]
	at net.minecraft.world.entity.AgeableMob.aiStep(AgeableMob.java:155) ~[?:?]
	at net.minecraft.world.entity.animal.Animal.aiStep(Animal.java:64) ~[?:?]
	at net.minecraft.world.entity.LivingEntity.tick(LivingEntity.java:3093) ~[?:?]
	at net.minecraft.world.entity.Mob.tick(Mob.java:460) ~[?:?]
	at net.minecraft.server.level.ServerLevel.tickNonPassenger(ServerLevel.java:1435) ~[?:?]
	at net.minecraft.server.level.ServerLevel.lambda$tick$12(ServerLevel.java:896) ~[?:?]
	at net.minecraft.world.level.entity.EntityTickList.forEach(EntityTickList.java:42) ~[purpur-1.20.1.jar:git-Purpur-2014]
	at net.minecraft.server.level.ServerLevel.tick(ServerLevel.java:873) ~[?:?]
	at net.minecraft.server.MinecraftServer.tickChildren(MinecraftServer.java:1586) ~[purpur-1.20.1.jar:git-Purpur-2014]
	at net.minecraft.server.dedicated.DedicatedServer.tickChildren(DedicatedServer.java:487) ~[purpur-1.20.1.jar:git-Purpur-2014]
	at net.minecraft.server.MinecraftServer.tickServer(MinecraftServer.java:1421) ~[purpur-1.20.1.jar:git-Purpur-2014]
	at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1192) ~[purpur-1.20.1.jar:git-Purpur-2014]
	at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:323) ~[purpur-1.20.1.jar:git-Purpur-2014]
	at java.lang.Thread.run(Thread.java:833) ~[?:?]
[00:14:52] [Server thread/ERROR]: [MythicMobs] [SCHEDULER] Exception thrown whilst executing task
[00:14:52] [Server thread/WARN]: java.lang.IllegalStateException: Already retired
[00:14:52] [Server thread/WARN]: 	at io.papermc.paper.threadedregions.EntityScheduler.retire(EntityScheduler.java:66)
[00:14:52] [Server thread/WARN]: 	at net.minecraft.world.entity.Entity.retireScheduler(Entity.java:4851)
[00:14:52] [Server thread/WARN]: 	at net.minecraft.world.entity.Entity.b(Entity.java:4836)
[00:14:52] [Server thread/WARN]: 	at net.minecraft.world.entity.Entity.a(Entity.java:747)
[00:14:52] [Server thread/WARN]: 	at net.minecraft.world.entity.EntityLiving.a(EntityLiving.java:765)
[00:14:52] [Server thread/WARN]: 	at net.minecraft.world.entity.Entity.ai(Entity.java:729)
[00:14:52] [Server thread/WARN]: 	at org.bukkit.craftbukkit.v1_20_R1.entity.CraftEntity.remove(CraftEntity.java:728)
[00:14:52] [Server thread/WARN]: 	at MythicMobs-5.3.5.jar//io.lumine.mythic.bukkit.adapters.BukkitEntity.lambda$remove$0(BukkitEntity.java:355)
[00:14:52] [Server thread/WARN]: 	at MythicMobs-5.3.5.jar//io.lumine.mythic.bukkit.utils.Delegates$RunnableToSupplier.get(Delegates.java:121)
[00:14:52] [Server thread/WARN]: 	at MythicMobs-5.3.5.jar//io.lumine.mythic.bukkit.utils.promise.LuminePromise$SupplyRunnable.run(LuminePromise.java:654)
[00:14:52] [Server thread/WARN]: 	at MythicMobs-5.3.5.jar//io.lumine.mythic.bukkit.utils.tasks.LumineExecutors$SchedulerWrappedRunnable.run(LumineExecutors.java:70)
[00:14:52] [Server thread/WARN]: 	at org.bukkit.craftbukkit.v1_20_R1.scheduler.CraftTask.run(CraftTask.java:101)
[00:14:52] [Server thread/WARN]: 	at org.bukkit.craftbukkit.v1_20_R1.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:480)
[00:14:52] [Server thread/WARN]: 	at net.minecraft.server.MinecraftServer.b(MinecraftServer.java:1507)
[00:14:52] [Server thread/WARN]: 	at net.minecraft.server.dedicated.DedicatedServer.b(DedicatedServer.java:487)
[00:14:52] [Server thread/WARN]: 	at net.minecraft.server.MinecraftServer.a(MinecraftServer.java:1421)
[00:14:52] [Server thread/WARN]: 	at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:1192)
[00:14:52] [Server thread/WARN]: 	at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:323)
[00:14:52] [Server thread/WARN]: 	at java.base/java.lang.Thread.run(Thread.java:833)