Error on playerdrop event.

[leo]

[21:28:10 ERROR]: Could not pass event PlayerDropItemEvent to HubBasics v6.11.9
java.lang.NullPointerException: Cannot invoke "java.lang.Boolean.booleanValue()" because the return value of "net.notfab.hubbasics.spigot.nms.nbt.NBTItem.hasKey(String)" is null
        at net.notfab.hubbasics.spigot.listeners.v1_9.ItemListener.onItemDrop(ItemListener.java:44) ~[?:?]
        at com.destroystokyo.paper.event.executor.asm.generated.GeneratedEventExecutor76.execute(Unknown Source) ~[?:?]
        at org.bukkit.plugin.EventExecutor.lambda$create$1(EventExecutor.java:69) ~[patched_1.17.1.jar:git-Paper-90]
        at co.aikar.timings.TimedEventExecutor.execute(TimedEventExecutor.java:80) ~[patched_1.17.1.jar:git-Paper-90]
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:70) ~[patched_1.17.1.jar:git-Paper-90]
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:624) ~[patched_1.17.1.jar:git-Paper-90]
        at net.minecraft.world.entity.player.Player.drop(Player.java:744) ~[?:?]
        at net.minecraft.world.entity.player.Player.drop(Player.java:694) ~[?:?]
        at net.minecraft.server.level.ServerPlayer.drop(ServerPlayer.java:2150) ~[?:?]
        at net.minecraft.server.level.ServerPlayer.drop(ServerPlayer.java:2238) ~[?:?]
        at net.minecraft.server.network.ServerGamePacketListenerImpl.handlePlayerAction(ServerGamePacketListenerImpl.java:1636) ~[?:?]
        at net.minecraft.network.protocol.game.ServerboundPlayerActionPacket.handle(ServerboundPlayerActionPacket.java:34) ~[?:?]
        at net.minecraft.network.protocol.game.ServerboundPlayerActionPacket.handle(ServerboundPlayerActionPacket.java:8) ~[?:?]
        at net.minecraft.network.protocol.PacketUtils.lambda$ensureRunningOnSameThread$1(PacketUtils.java:36) ~[?:?]
        at net.minecraft.server.TickTask.run(TickTask.java:18) ~[patched_1.17.1.jar:git-Paper-90]
        at net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:149) ~[?:?]
        at net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[?:?]
        at net.minecraft.server.MinecraftServer.doRunTask(MinecraftServer.java:1348) ~[patched_1.17.1.jar:git-Paper-90]
        at net.minecraft.server.MinecraftServer.shouldRun(MinecraftServer.java:190) ~[patched_1.17.1.jar:git-Paper-90]
        at net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[?:?]
        at net.minecraft.server.MinecraftServer.pollTaskInternal(MinecraftServer.java:1327) ~[patched_1.17.1.jar:git-Paper-90]
        at net.minecraft.server.MinecraftServer.pollTask(MinecraftServer.java:1320) ~[patched_1.17.1.jar:git-Paper-90]
        at net.minecraft.util.thread.BlockableEventLoop.managedBlock(BlockableEventLoop.java:132) ~[?:?]
        at net.minecraft.server.MinecraftServer.waitUntilNextTick(MinecraftServer.java:1281) ~[patched_1.17.1.jar:git-Paper-90]
        at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1192) ~[patched_1.17.1.jar:git-Paper-90]
        at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:316) ~[patched_1.17.1.jar:git-Paper-90]
        at java.lang.Thread.run(Thread.java:831) [?:?]

This happens when I drop any item in the hub.