[02:04:29 ERROR]: Could not pass event InventoryClickEvent to Ultimate_BlockRegen v1.2.1
java.lang.ArrayIndexOutOfBoundsException: Index 81 out of bounds for length 54
        at java.util.Arrays$ArrayList.get(Arrays.java:4165) ~[?:?]
        at net.minecraft.core.NonNullList.get(NonNullList.java:44) ~[purpur-1.20.1.jar:git-Purpur-2019]
        at org.bukkit.craftbukkit.v1_20_R1.inventory.CraftInventoryCustom$MinecraftInventory.a(CraftInventoryCustom.java:131) ~[purpur-1.20.1.jar:git-Purpur-2019]
        at org.bukkit.craftbukkit.v1_20_R1.inventory.CraftInventory.getItem(CraftInventory.java:51) ~[purpur-1.20.1.jar:git-Purpur-2019]
        at org.hmmbo.ultimate_blockregen.guilistener.RegionGuiListener.oninvcclick(RegionGuiListener.java:40) ~[Ultimate_BlockRegen-1.2.1.jar:?]
        at com.destroystokyo.paper.event.executor.asm.generated.GeneratedEventExecutor86.execute(Unknown Source) ~[?:?]
        at org.bukkit.plugin.EventExecutor$2.execute(EventExecutor.java:77) ~[purpur-api-1.20.1-R0.1-SNAPSHOT.jar:?]
        at co.aikar.timings.TimedEventExecutor.execute(TimedEventExecutor.java:77) ~[purpur-api-1.20.1-R0.1-SNAPSHOT.jar:git-Purpur-2019]
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:70) ~[purpur-api-1.20.1-R0.1-SNAPSHOT.jar:?]
        at io.papermc.paper.plugin.manager.PaperEventManager.callEvent(PaperEventManager.java:54) ~[purpur-1.20.1.jar:git-Purpur-2019]
        at io.papermc.paper.plugin.manager.PaperPluginManagerImpl.callEvent(PaperPluginManagerImpl.java:126) ~[purpur-1.20.1.jar:git-Purpur-2019]
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:617) ~[purpur-api-1.20.1-R0.1-SNAPSHOT.jar:?]
        at net.minecraft.server.network.ServerGamePacketListenerImpl.handleContainerClick(ServerGamePacketListenerImpl.java:3302) ~[?:?]
        at net.minecraft.network.protocol.game.ServerboundContainerClickPacket.handle(ServerboundContainerClickPacket.java:58) ~[?:?]
        at net.minecraft.network.protocol.game.ServerboundContainerClickPacket.handle(ServerboundContainerClickPacket.java:23) ~[?:?]
        at net.minecraft.network.protocol.PacketUtils.lambda$ensureRunningOnSameThread$0(PacketUtils.java:51) ~[?:?]
        at net.minecraft.server.TickTask.run(TickTask.java:18) ~[purpur-1.20.1.jar:git-Purpur-2019]
        at net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:153) ~[?:?]
        at net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:24) ~[?:?]
        at net.minecraft.server.MinecraftServer.doRunTask(MinecraftServer.java:1366) ~[purpur-1.20.1.jar:git-Purpur-2019]
        at net.minecraft.server.MinecraftServer.d(MinecraftServer.java:197) ~[purpur-1.20.1.jar:git-Purpur-2019]
        at net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:126) ~[?:?]
        at net.minecraft.server.MinecraftServer.pollTaskInternal(MinecraftServer.java:1343) ~[purpur-1.20.1.jar:git-Purpur-2019]
        at net.minecraft.server.MinecraftServer.pollTask(MinecraftServer.java:1336) ~[purpur-1.20.1.jar:git-Purpur-2019]
        at net.minecraft.util.thread.BlockableEventLoop.managedBlock(BlockableEventLoop.java:136) ~[?:?]
        at net.minecraft.server.MinecraftServer.waitUntilNextTick(MinecraftServer.java:1314) ~[purpur-1.20.1.jar:git-Purpur-2019]
        at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1202) ~[purpur-1.20.1.jar:git-Purpur-2019]
        at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:323) ~[purpur-1.20.1.jar:git-Purpur-2019]
        at java.lang.Thread.run(Thread.java:833) ~[?:?]