Hi, can you please deal with this? I do not see what it can do. Resulted in the shutdown res. Thank you

`> [15:36:52 INFO]: UUID of player Turtwig is a7d8fe2f-56ce-xxxxxxxxxxxxxxxxxxxxx

[15:36:52 INFO]: Turtwig[/81.30.XXX.XXX:52955] logged in with entity id 478119 at ([priroda2]-256.76382477317514, 67.0, -36.700738150611926)
[15:36:52 INFO]: [GAListener] Player: Turtwig has 0 votes
[15:36:52 INFO]: ◀HRAC▶ Turtwig >> se k nam prave pripojil/a
[15:36:52 WARN]: Exception in thread "Craft Scheduler Thread - 653"
[15:36:52 WARN]: org.apache.commons.lang.UnhandledException: Plugin Residence v4.4.1.1 generated an exception while executing task 60699
at org.bukkit.craftbukkit.v1_8_R3.scheduler.CraftAsyncTask.run(CraftAsyncTask.java:56)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
at ru.tehkode.permissions.bukkit.regexperms.PermissiblePEX.calculateChildPerms(PermissiblePEX.java:195)
at ru.tehkode.permissions.bukkit.regexperms.PermissiblePEX.recalculatePermissions(PermissiblePEX.java:178)
at org.bukkit.craftbukkit.v1_8_R3.entity.CraftHumanEntity.recalculatePermissions(CraftHumanEntity.java:130)
at org.bukkit.permissions.Permission.recalculatePermissibles(Permission.java:168)
at org.bukkit.permissions.Permission.(Permission.java:67)
at org.bukkit.permissions.Permission.(Permission.java:35)
at com.bekvon.bukkit.residence.containers.PlayerGroup.getPermissionGroup(PlayerGroup.java:102)
at com.bekvon.bukkit.residence.containers.PlayerGroup.updateGroup(PlayerGroup.java:69)
at com.bekvon.bukkit.residence.permissions.PermissionManager.updateGroupNameForPlayer(PermissionManager.java:128)
at com.bekvon.bukkit.residence.permissions.PermissionManager.updateGroupNameForPlayer(PermissionManager.java:118)
at com.bekvon.bukkit.residence.listeners.ResidencePlayerListener$3.run(ResidencePlayerListener.java:647)
at org.bukkit.craftbukkit.v1_8_R3.scheduler.CraftTask.run(CraftTask.java:71)
at org.bukkit.craftbukkit.v1_8_R3.scheduler.CraftAsyncTask.run(CraftAsyncTask.java:53)
... 3 more
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.GeneratedMethodAccessor152.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at ru.tehkode.permissions.bukkit.regexperms.PermissiblePEX.calculateChildPerms(PermissiblePEX.java:191)
... 15 more
Caused by: java.util.ConcurrentModificationException
at java.util.LinkedHashMap$LinkedHashIterator.nextNode(LinkedHashMap.java:711)
at java.util.LinkedHashMap$LinkedKeyIterator.next(LinkedHashMap.java:734)
at org.bukkit.permissions.PermissibleBase.calculateChildPermissions(PermissibleBase.java:181)
at org.bukkit.permissions.PermissibleBase.calculateChildPermissions(PermissibleBase.java:190)
... 19 more

[15:36:57 INFO]: [AuthMe] Turtwig logged in!

Thank you very much sir

If I'm reading that right, the Residence 4.4.1.1 plugin is not for Minecraft 1.8.x servers. That's what's causing the error.

Looks like Residence is doing permissions operations on an async task, which is not supported by bukkit or PEX -- this should be brought up with that plugin's devs.