Hỏi đáp lỗi MythicMobs

mng ơi mình cài mythicmobs mà nó cứ hiện dòng này, mik ko bt đây lỗi j mong mng chỉ
[MythicMobs] Plugin MythicMobs v4.6.5-2800 generated an exception while executing task 533
java.lang.NoSuchMethodError: org.bukkit.Bukkit.getEntity(Ljava/util/UUID;)Lorg/bukkit/entity/Entity;
at io.lumine.xikage.mythicmobs.adapters.bukkit.BukkitWorldManager.getEntity(BukkitWorldManager.java:97) ~[?:?]
at io.lumine.xikage.mythicmobs.mobs.ActiveMob.getEntity(ActiveMob.java:156) ~[?:?]
at io.lumine.xikage.mythicmobs.skills.SkillManager.runTimerSkills(SkillManager.java:438) ~[?:?]
at io.lumine.xikage.mythicmobs.clock.MythicMobsAsyncClock.run(MythicMobsAsyncClock.java:21) ~[?:?]
at org.bukkit.craftbukkit.v1_10_R1.scheduler.CraftTask.run(CraftTask.java:71) ~[spigot.jar:git-Spigot-de459a2-51263e9]
at org.bukkit.craftbukkit.v1_10_R1.scheduler.CraftAsyncTask.run(CraftAsyncTask.java:52) [spigot.jar:git-Spigot-de459a2-51263e9]
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [?:1.8.0_301]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [?:1.8.0_301]
at java.lang.Thread.run(Unknown Source) [?:1.8.0_301]
[08:35:52 WARN]: [MythicMobs] Plugin MythicMobs v4.6.5-2800 generated an exception while executing task 533
java.lang.NoSuchMethodError: org.bukkit.Bukkit.getEntity(Ljava/util/UUID;)Lorg/bukkit/entity/Entity;
at io.lumine.xikage.mythicmobs.adapters.bukkit.BukkitWorldManager.getEntity(BukkitWorldManager.java:97) ~[?:?]
at io.lumine.xikage.mythicmobs.mobs.ActiveMob.getEntity(ActiveMob.java:156) ~[?:?]
at io.lumine.xikage.mythicmobs.skills.SkillManager.runTimerSkills(SkillManager.java:438) ~[?:?]
at io.lumine.xikage.mythicmobs.clock.MythicMobsAsyncClock.run(MythicMobsAsyncClock.java:21) ~[?:?]
at org.bukkit.craftbukkit.v1_10_R1.scheduler.CraftTask.run(CraftTask.java:71) ~[spigot.jar:git-Spigot-de459a2-51263e9]
at org.bukkit.craftbukkit.v1_10_R1.scheduler.CraftAsyncTask.run(CraftAsyncTask.java:52) [spigot.jar:git-Spigot-de459a2-51263e9]
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [?:1.8.0_301]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [?:1.8.0_301]
at java.lang.Thread.run(Unknown Source) [?:1.8.0_301]