Plugin Factions v3.3.2 generated an exception while executing task console spam

[eirikh1996]

Affected Plugin

• Affected Plugin Name: Factions
• Affected Plugin Version: 3.3.2

Describe your Environment

• Server Version: 1.16.5

Steps to Reproduce this Bug

1. Install Factions and MassiveCore, along with Dynmap
2. Start the server
3. Stacktrace is spammed in console

Observed Results

[15:59:21 WARN]: [Factions] Plugin Factions v3.3.2 generated an exception while executing task 61
java.lang.NullPointerException: element cannot be mapped to a null key
        at java.util.Objects.requireNonNull(Objects.java:233) ~[?:?]
        at java.util.stream.Collectors.lambda$groupingBy$53(Collectors.java:1135) ~[?:?]
        at java.util.stream.ReduceOps$3ReducingSink.accept(ReduceOps.java:169) ~[?:?]
        at java.util.concurrent.ConcurrentSkipListMap$EntrySpliterator.forEachRemaining(ConcurrentSkipListMap.java:3336) ~[?:?]
        at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) ~[?:?]
        at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) ~[?:?]
        at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:913) ~[?:?]
        at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) ~[?:?]
        at java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:682) ~[?:?]
        at com.massivecraft.factions.entity.Board.getFactionToChunks(Board.java:171) ~[?:?]
        at com.massivecraft.factions.entity.BoardColl.lambda$getWorldToFactionToChunks$2(BoardColl.java:195) ~[?:?]
        at java.util.stream.Collectors.lambda$uniqKeysMapAccumulator$1(Collectors.java:180) ~[?:?]
        at java.util.stream.ReduceOps$3ReducingSink.accept(ReduceOps.java:169) ~[?:?]
        at java.util.concurrent.ConcurrentHashMap$ValueSpliterator.forEachRemaining(ConcurrentHashMap.java:3612) ~[?:?]
        at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) ~[?:?]
        at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) ~[?:?]
        at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:913) ~[?:?]
        at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) ~[?:?]
        at java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:682) ~[?:?]
        at com.massivecraft.factions.entity.BoardColl.getWorldToFactionToChunks(BoardColl.java:195) ~[?:?]
        at com.massivecraft.factions.integration.dynmap.EngineDynmap.createAreas(EngineDynmap.java:191) ~[?:?]
        at com.massivecraft.factions.integration.dynmap.EngineDynmap.perform(EngineDynmap.java:92) ~[?:?]
        at com.massivecraft.factions.integration.dynmap.EngineDynmap.run(EngineDynmap.java:76) ~[?:?]
        at org.bukkit.craftbukkit.v1_16_R3.scheduler.CraftTask.run(CraftTask.java:100) ~[patched_1.16.5.jar:git-Paper-706]
        at org.bukkit.craftbukkit.v1_16_R3.scheduler.CraftAsyncTask.run(CraftAsyncTask.java:54) ~[patched_1.16.5.jar:git-Paper-706]
        at com.destroystokyo.paper.ServerSchedulerReportingWrapper.run(ServerSchedulerReportingWrapper.java:22) ~[patched_1.16.5.jar:git-Paper-706]
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130) ~[?:?]
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:630) ~[?:?]
        at java.lang.Thread.run(Thread.java:831) [?:?]

Expected Results

There should be no stacktrace