[15:20:06 ERROR]: Could not pass event PlayerInteractEvent to LobbyMenu v1.3.6.1
java.lang.IllegalArgumentException: Material cannot be null
        at org.apache.commons.lang.Validate.notNull(Validate.java:192) ~[patched_1.14.4.jar:git-Paper-225]
        at org.bukkit.inventory.ItemStack.<init>(ItemStack.java:73) ~[patched_1.14.4.jar:git-Paper-225]
        at org.bukkit.inventory.ItemStack.<init>(ItemStack.java:61) ~[patched_1.14.4.jar:git-Paper-225]
        at org.bukkit.inventory.ItemStack.<init>(ItemStack.java:49) ~[patched_1.14.4.jar:git-Paper-225]
        at org.bukkit.inventory.ItemStack.<init>(ItemStack.java:39) ~[patched_1.14.4.jar:git-Paper-225]
        at org.dragonet.bukkit.lobbymenu.ItemMenuInstance.setButton(ItemMenuInstance.java:48) ~[?:?]
        at org.dragonet.bukkit.lobbymenu.ItemUseListener.openMenuForPlayer(ItemUseListener.java:85) ~[?:?]
        at org.dragonet.bukkit.lobbymenu.ItemUseListener.onItemUse(ItemUseListener.java:48) ~[?:?]
        at com.destroystokyo.paper.event.executor.MethodHandleEventExecutor.execute(MethodHandleEventExecutor.java:37) ~[patched_1.14.4.jar:git-Paper-225]
        at co.aikar.timings.TimedEventExecutor.execute(TimedEventExecutor.java:80) ~[patched_1.14.4.jar:git-Paper-225]
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:70) ~[patched_1.14.4.jar:git-Paper-225]
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:545) ~[patched_1.14.4.jar:git-Paper-225]
        at org.bukkit.craftbukkit.v1_14_R1.event.CraftEventFactory.callPlayerInteractEvent(CraftEventFactory.java:454) ~[patched_1.14.4.jar:git-Paper-225]
        at org.bukkit.craftbukkit.v1_14_R1.event.CraftEventFactory.callPlayerInteractEvent(CraftEventFactory.java:421) ~[patched_1.14.4.jar:git-Paper-225]
        at org.bukkit.craftbukkit.v1_14_R1.event.CraftEventFactory.callPlayerInteractEvent(CraftEventFactory.java:417) ~[patched_1.14.4.jar:git-Paper-225]
        at net.minecraft.server.v1_14_R1.PlayerConnection.a(PlayerConnection.java:1400) ~[patched_1.14.4.jar:git-Paper-225]
        at net.minecraft.server.v1_14_R1.PacketPlayInBlockPlace.a(PacketPlayInBlockPlace.java:28) ~[patched_1.14.4.jar:git-Paper-225]
        at net.minecraft.server.v1_14_R1.PacketPlayInBlockPlace.a(PacketPlayInBlockPlace.java:5) ~[patched_1.14.4.jar:git-Paper-225]
        at net.minecraft.server.v1_14_R1.PlayerConnectionUtils.lambda$ensureMainThread$0(PlayerConnectionUtils.java:23) ~[patched_1.14.4.jar:git-Paper-225]
        at net.minecraft.server.v1_14_R1.TickTask.run(SourceFile:18) ~[patched_1.14.4.jar:git-Paper-225]
        at net.minecraft.server.v1_14_R1.IAsyncTaskHandler.executeTask(IAsyncTaskHandler.java:136) ~[patched_1.14.4.jar:git-Paper-225]
        at net.minecraft.server.v1_14_R1.IAsyncTaskHandlerReentrant.executeTask(SourceFile:23) ~[patched_1.14.4.jar:git-Paper-225]
        at net.minecraft.server.v1_14_R1.IAsyncTaskHandler.executeNext(IAsyncTaskHandler.java:109) ~[patched_1.14.4.jar:git-Paper-225]
        at net.minecraft.server.v1_14_R1.MinecraftServer.aX(MinecraftServer.java:1029) ~[patched_1.14.4.jar:git-Paper-225]
        at net.minecraft.server.v1_14_R1.MinecraftServer.executeNext(MinecraftServer.java:1022) ~[patched_1.14.4.jar:git-Paper-225]
        at net.minecraft.server.v1_14_R1.IAsyncTaskHandler.awaitTasks(IAsyncTaskHandler.java:119) ~[patched_1.14.4.jar:git-Paper-225]
        at net.minecraft.server.v1_14_R1.MinecraftServer.sleepForTick(MinecraftServer.java:1006) ~[patched_1.14.4.jar:git-Paper-225]
        at net.minecraft.server.v1_14_R1.MinecraftServer.run(MinecraftServer.java:929) ~[patched_1.14.4.jar:git-Paper-225]
        at java.lang.Thread.run(Unknown Source) [?:1.8.0_231]