[10:48:09] [Server thread/WARN]: [UpgradeableHoppers] Task #58 for UpgradeableHoppers v1.2.6.1 generated an exception
java.util.NoSuchElementException: null
        at java.util.LinkedHashMap$LinkedHashIterator.nextNode(LinkedHashMap.java:721) ~[?:1.8.0_231]
        at java.util.LinkedHashMap$LinkedEntryIterator.next(LinkedHashMap.java:752) ~[?:1.8.0_231]
        at java.util.LinkedHashMap$LinkedEntryIterator.next(LinkedHashMap.java:750) ~[?:1.8.0_231]
        at com.google.common.collect.StandardTable$CellIterator.next(StandardTable.java:256) ~[skyblock.jar:git-Purpur-323]
        at com.google.common.collect.StandardTable$CellIterator.next(StandardTable.java:240) ~[skyblock.jar:git-Purpur-323]
        at com.google.common.collect.TransformedIterator.next(TransformedIterator.java:47) ~[skyblock.jar:git-Purpur-323]
        at java.util.Iterator.forEachRemaining(Iterator.java:116) ~[?:1.8.0_231]
        at java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1801) ~[?:1.8.0_231]
        at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:482) ~[?:1.8.0_231]
        at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:472) ~[?:1.8.0_231]
        at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:708) ~[?:1.8.0_231]
        at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) ~[?:1.8.0_231]
        at java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:499) ~[?:1.8.0_231]
        at me.angeschossen.upgradeablehoppers.i.a.a(F:41) ~[?:?]
        at java.util.HashMap$Values.forEach(HashMap.java:981) ~[?:1.8.0_231]
        at me.angeschossen.upgradeablehoppers.i.a.run(F:40) ~[?:?]
        at org.bukkit.craftbukkit.v1_14_R1.scheduler.CraftTask.run(CraftTask.java:84) ~[skyblock.jar:git-Purpur-323]
        at org.bukkit.craftbukkit.v1_14_R1.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:452) ~[skyblock.jar:git-Purpur-323]
        at net.minecraft.server.v1_14_R1.MinecraftServer.b(MinecraftServer.java:1178) ~[skyblock.jar:git-Purpur-323]
        at net.minecraft.server.v1_14_R1.DedicatedServer.b(DedicatedServer.java:426) ~[skyblock.jar:git-Purpur-323]
        at net.minecraft.server.v1_14_R1.MinecraftServer.a(MinecraftServer.java:1105) ~[skyblock.jar:git-Purpur-323]
        at net.minecraft.server.v1_14_R1.MinecraftServer.run(MinecraftServer.java:932) ~[skyblock.jar:git-Purpur-323]
        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_231]