Ver 4.0.8-4.0.9 Model will Encountered An Exception [Paper 1.20.4]

errors may occur occasionally, when use any model.

Sometimes, these errors may cause the model to remain on the map and not disappear.

[14:52:34 WARN]: java.util.concurrent.CompletionException: java.lang.RuntimeException: Entity with UUID ddde74d1-d64a-464d-8e4a-6edcca086446 has encountered an exception:
[14:52:34 WARN]:        at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315)
[14:52:34 WARN]:        at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320)
[14:52:34 WARN]:        at java.base/java.util.concurrent.CompletableFuture$AsyncRun.run(CompletableFuture.java:1807)
[14:52:34 WARN]:        at java.base/java.util.concurrent.CompletableFuture$AsyncRun.exec(CompletableFuture.java:1796)
[14:52:34 WARN]:        at java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:387)
[14:52:34 WARN]:        at java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1312)
[14:52:34 WARN]:        at java.base/java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1843)
[14:52:34 WARN]:        at java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1808)
[14:52:34 WARN]:        at java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:188)
[14:52:34 WARN]: Caused by: java.lang.RuntimeException: Entity with UUID ddde74d1-d64a-464d-8e4a-6edcca086446 has encountered an exception:
[14:52:34 WARN]:        at ModelEngine-R4.0.9.jar//com.ticxo.modelengine.api.model.ModelUpdaters.lambda$tick$2(ModelUpdaters.java:77)
[14:52:34 WARN]:        at java.base/java.util.concurrent.CompletableFuture$AsyncRun.run(CompletableFuture.java:1804)
[14:52:34 WARN]:        ... 6 more
[14:52:34 WARN]: Caused by: java.lang.NullPointerException: Cannot invoke "it.unimi.dsi.fastutil.ints.IntArrayList.getInt(int)" because "this.wrapped" is null
[14:52:34 WARN]:        at it.unimi.dsi.fastutil.ints.Int2ObjectOpenHashMap$MapIterator.nextEntry(Int2ObjectOpenHashMap.java:663)
[14:52:34 WARN]:        at it.unimi.dsi.fastutil.ints.Int2ObjectOpenHashMap$FastEntryIterator.next(Int2ObjectOpenHashMap.java:777)
[14:52:34 WARN]:        at it.unimi.dsi.fastutil.ints.Int2ObjectOpenHashMap$FastEntryIterator.next(Int2ObjectOpenHashMap.java:772)
[14:52:34 WARN]:        at it.unimi.dsi.fastutil.ints.AbstractInt2ObjectMap.putAll(AbstractInt2ObjectMap.java:349)
[14:52:34 WARN]:        at it.unimi.dsi.fastutil.ints.Int2ObjectOpenHashMap.putAll(Int2ObjectOpenHashMap.java:233)
[14:52:34 WARN]:        at it.unimi.dsi.fastutil.ints.Int2ObjectOpenHashMap.<init>(Int2ObjectOpenHashMap.java:151)
[14:52:34 WARN]:        at it.unimi.dsi.fastutil.ints.Int2ObjectOpenHashMap.<init>(Int2ObjectOpenHashMap.java:161)
[14:52:34 WARN]:        at ModelEngine-R4.0.9.jar//com.ticxo.modelengine.api.model.bone.BoneItems.getItems(BoneItems.java:30)
[14:52:34 WARN]:        at ModelEngine-R4.0.9.jar//com.ticxo.modelengine.core.model.render.DisplayRendererImpl$BoneImpl.updateBoneData(DisplayRendererImpl.java:347)
[14:52:34 WARN]:        at ModelEngine-R4.0.9.jar//com.ticxo.modelengine.core.model.render.DisplayRendererImpl.read(DisplayRendererImpl.java:195)
[14:52:34 WARN]:        at ModelEngine-R4.0.9.jar//com.ticxo.modelengine.core.model.render.DisplayRendererImpl.readModelData(DisplayRendererImpl.java:161)
[14:52:34 WARN]:        at ModelEngine-R4.0.9.jar//com.ticxo.modelengine.core.model.ActiveModelImpl.tick(ActiveModelImpl.java:183)
[14:52:34 WARN]:        at ModelEngine-R4.0.9.jar//com.ticxo.modelengine.core.model.ModeledEntityImpl.tick(ModeledEntityImpl.java:124)
[14:52:34 WARN]:        at ModelEngine-R4.0.9.jar//com.ticxo.modelengine.api.model.ModelUpdaters.lambda$tick$2(ModelUpdaters.java:69)
[14:52:34 WARN]:        ... 7 more

[14:58:49 WARN]: java.util.concurrent.CompletionException: java.lang.RuntimeException: Entity with UUID ddde74d1-d64a-464d-8e4a-6edcca086446 has encountered an exception:
[14:58:49 WARN]:        at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315)
[14:58:49 WARN]:        at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320)
[14:58:49 WARN]:        at java.base/java.util.concurrent.CompletableFuture$AsyncRun.run(CompletableFuture.java:1807)
[14:58:49 WARN]:        at java.base/java.util.concurrent.CompletableFuture$AsyncRun.exec(CompletableFuture.java:1796)
[14:58:49 WARN]:        at java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:387)
[14:58:49 WARN]:        at java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1312)
[14:58:49 WARN]:        at java.base/java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1843)
[14:58:49 WARN]:        at java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1808)
[14:58:49 WARN]:        at java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:188)
[14:58:49 WARN]: Caused by: java.lang.RuntimeException: Entity with UUID ddde74d1-d64a-464d-8e4a-6edcca086446 has encountered an exception:
[14:58:49 WARN]:        at ModelEngine-R4.0.9.jar//com.ticxo.modelengine.api.model.ModelUpdaters.lambda$tick$2(ModelUpdaters.java:77)
[14:58:49 WARN]:        at java.base/java.util.concurrent.CompletableFuture$AsyncRun.run(CompletableFuture.java:1804)
[14:58:49 WARN]:        ... 6 more
[14:58:49 WARN]: Caused by: java.lang.NullPointerException: Cannot invoke "org.bukkit.inventory.ItemStack.clone()" because the return value of "java.util.Map.get(Object)" is null
[14:58:49 WARN]:        at ModelEngine-R4.0.9.jar//com.ticxo.modelengine.core.model.render.DisplayRendererImpl$BoneImpl.lambda$updateBoneData$1(DisplayRendererImpl.java:360)
[14:58:49 WARN]:        at java.base/java.lang.Iterable.forEach(Iterable.java:75)
[14:58:49 WARN]:        at ModelEngine-R4.0.9.jar//com.ticxo.modelengine.core.model.render.DisplayRendererImpl$BoneImpl.updateBoneData(DisplayRendererImpl.java:359)
[14:58:49 WARN]:        at ModelEngine-R4.0.9.jar//com.ticxo.modelengine.core.model.render.DisplayRendererImpl.read(DisplayRendererImpl.java:195)
[14:58:49 WARN]:        at ModelEngine-R4.0.9.jar//com.ticxo.modelengine.core.model.render.DisplayRendererImpl.readModelData(DisplayRendererImpl.java:161)
[14:58:49 WARN]:        at ModelEngine-R4.0.9.jar//com.ticxo.modelengine.core.model.ActiveModelImpl.tick(ActiveModelImpl.java:183)
[14:58:49 WARN]:        at ModelEngine-R4.0.9.jar//com.ticxo.modelengine.core.model.ModeledEntityImpl.tick(ModeledEntityImpl.java:124)
[14:58:49 WARN]:        at ModelEngine-R4.0.9.jar//com.ticxo.modelengine.api.model.ModelUpdaters.lambda$tick$2(ModelUpdaters.java:69)
[14:58:49 WARN]:        ... 7 more

[14:52:39 WARN]: java.util.concurrent.CompletionException: java.lang.RuntimeException: Entity with UUID ddde74d1-d64a-464d-8e4a-6edcca086446 has encountered an exception:
[14:52:39 WARN]:        at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315)
[14:52:39 WARN]:        at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320)
[14:52:39 WARN]:        at java.base/java.util.concurrent.CompletableFuture$AsyncRun.run(CompletableFuture.java:1807)
[14:52:39 WARN]:        at java.base/java.util.concurrent.CompletableFuture$AsyncRun.exec(CompletableFuture.java:1796)
[14:52:39 WARN]:        at java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:387)
[14:52:39 WARN]:        at java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1312)
[14:52:39 WARN]:        at java.base/java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1843)
[14:52:39 WARN]:        at java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1808)
[14:52:39 WARN]:        at java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:188)
[14:52:39 WARN]: Caused by: java.lang.RuntimeException: Entity with UUID ddde74d1-d64a-464d-8e4a-6edcca086446 has encountered an exception:
[14:52:39 WARN]:        at ModelEngine-R4.0.9.jar//com.ticxo.modelengine.api.model.ModelUpdaters.lambda$tick$2(ModelUpdaters.java:77)
[14:52:39 WARN]:        at java.base/java.util.concurrent.CompletableFuture$AsyncRun.run(CompletableFuture.java:1804)
[14:52:39 WARN]:        ... 6 more
[14:52:39 WARN]: Caused by: java.lang.NullPointerException