>.... [18:11:53 WARN]: [MythicMobs] Plugin MythicMobs v4.6.5-2800 generated an exception while executing task 123
java.util.ConcurrentModificationException: null
at java.util.ArrayList$Itr.checkForComodification(ArrayList.java:909) ~[?:1.8.0_222]
at java.util.ArrayList$Itr.next(ArrayList.java:859) ~[?:1.8.0_222]
at io.lumine.xikage.mythicmobs.spawning.random.RandomSpawnerManager$RandomPointGeneratorLand.generateSpawnPoints(RandomSpawnerManager.java:234) ~[?:?]
at io.lumine.xikage.mythicmobs.spawning.random.RandomSpawnGenerator.run(RandomSpawnGenerator.java:16) ~[?:?]
at io.lumine.xikage.mythicmobs.adapters.bukkit.BukkitTaskManager.lambda$scheduleAsyncTask$186(BukkitTaskManager.java:31) ~[?:?]
at org.bukkit.craftbukkit.v1_14_R1.scheduler.CraftTask.run(CraftTask.java:84) ~[patched_1.14.4.jar:git-Paper-192]
at org.bukkit.craftbukkit.v1_14_R1.scheduler.CraftAsyncTask.run(CraftAsyncTask.java:54) ~[patched_1.14.4.jar:git-Paper-192]
at com.destroystokyo.paper.ServerSchedulerReportingWrapper.run(ServerSchedulerReportingWrapper.java:22) ~[patched_1.14.4.jar:git-Paper-192]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:1.8.0_222]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:1.8.0_222]
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_222]