[Sun, 12. Jul 2020 07:50:40 EDT] Share this with Kepler:
[Sun, 12. Jul 2020 07:50:40 EDT] - itemStack = ItemStack{AIR x 0}
[Sun, 12. Jul 2020 07:50:40 EDT] - amount = 1
[Sun, 12. Jul 2020 07:50:40 EDT] java.lang.AssertionError: TRAP
[Sun, 12. Jul 2020 07:50:40 EDT]     at net.minecraft.server.v1_16_R1.ItemStack.checkEmpty(ItemStack.java:156)
[Sun, 12. Jul 2020 07:50:40 EDT]     at net.minecraft.server.v1_16_R1.ItemStack.setCount(ItemStack.java:991)
[Sun, 12. Jul 2020 07:50:40 EDT]     at org.bukkit.craftbukkit.v1_16_R1.inventory.CraftItemStack.setAmount(CraftItemStack.java:149)
[Sun, 12. Jul 2020 07:50:40 EDT]     at net.benwoodworth.fastcraft.bukkit.world.BukkitFcItemStack_1_7$Factory.copyItem(BukkitFcItemStack_1_7.kt:72)
[Sun, 12. Jul 2020 07:50:40 EDT]     at net.benwoodworth.fastcraft.crafting.model.ItemAmounts.asKey(ItemAmounts.kt:22)
[Sun, 12. Jul 2020 07:50:40 EDT]     at net.benwoodworth.fastcraft.crafting.model.ItemAmounts.get(ItemAmounts.kt:28)
[Sun, 12. Jul 2020 07:50:40 EDT]     at net.benwoodworth.fastcraft.crafting.model.FastCraftRecipe.canCraft(FastCraftRecipe.kt:41)
[Sun, 12. Jul 2020 07:50:40 EDT]     at net.benwoodworth.fastcraft.crafting.model.FastCraftGuiModel.craftRecipe(FastCraftGuiModel.kt:65)
[Sun, 12. Jul 2020 07:50:40 EDT]     at net.benwoodworth.fastcraft.crafting.presenter.FastCraftGuiPresenter$RecipeButtonListener.onCraft(FastCraftGuiPresenter.kt:170)
[Sun, 12. Jul 2020 07:50:40 EDT]     at net.benwoodworth.fastcraft.crafting.view.buttons.RecipeButtonView$ButtonListener$onClick$action$1.invoke(RecipeButtonView.kt:140)
[Sun, 12. Jul 2020 07:50:40 EDT]     at net.benwoodworth.fastcraft.crafting.view.buttons.RecipeButtonView$ButtonListener$onClick$action$1.invoke(RecipeButtonView.kt:134)
[Sun, 12. Jul 2020 07:50:40 EDT]     at net.benwoodworth.fastcraft.crafting.view.buttons.RecipeButtonView$ButtonListener.onClick(RecipeButtonView.kt:149)
[Sun, 12. Jul 2020 07:50:40 EDT]     at net.benwoodworth.fastcraft.bukkit.gui.BukkitFcGui_1_7$InventoryListener.onInventoryClick(BukkitFcGui_1_7.kt:106)
[Sun, 12. Jul 2020 07:50:40 EDT]     at com.destroystokyo.paper.event.executor.MethodHandleEventExecutor.execute(MethodHandleEventExecutor.java:37)
[Sun, 12. Jul 2020 07:50:40 EDT]     at co.aikar.timings.TimedEventExecutor.execute(TimedEventExecutor.java:80)
[Sun, 12. Jul 2020 07:50:40 EDT]     at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:70)
[Sun, 12. Jul 2020 07:50:40 EDT]     at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:607)
[Sun, 12. Jul 2020 07:50:40 EDT]     at net.minecraft.server.v1_16_R1.PlayerConnection.a(PlayerConnection.java:2479)
[Sun, 12. Jul 2020 07:50:40 EDT]     at net.minecraft.server.v1_16_R1.PacketPlayInWindowClick.a(SourceFile:32)
[Sun, 12. Jul 2020 07:50:40 EDT]     at net.minecraft.server.v1_16_R1.PacketPlayInWindowClick.a(SourceFile:10)
[Sun, 12. Jul 2020 07:50:40 EDT]     at net.minecraft.server.v1_16_R1.PlayerConnectionUtils.lambda$ensureMainThread$1(PlayerConnectionUtils.java:43)
[Sun, 12. Jul 2020 07:50:40 EDT]     at net.minecraft.server.v1_16_R1.TickTask.run(SourceFile:18)
[Sun, 12. Jul 2020 07:50:40 EDT]     at net.minecraft.server.v1_16_R1.IAsyncTaskHandler.executeTask(IAsyncTaskHandler.java:136)
[Sun, 12. Jul 2020 07:50:40 EDT]     at net.minecraft.server.v1_16_R1.IAsyncTaskHandlerReentrant.executeTask(SourceFile:23)
[Sun, 12. Jul 2020 07:50:40 EDT]     at net.minecraft.server.v1_16_R1.IAsyncTaskHandler.executeNext(IAsyncTaskHandler.java:109)
[Sun, 12. Jul 2020 07:50:40 EDT]     at net.minecraft.server.v1_16_R1.MinecraftServer.aZ(MinecraftServer.java:1204)
[Sun, 12. Jul 2020 07:50:40 EDT]     at net.minecraft.server.v1_16_R1.MinecraftServer.executeNext(MinecraftServer.java:1197)
[Sun, 12. Jul 2020 07:50:40 EDT]     at net.minecraft.server.v1_16_R1.IAsyncTaskHandler.awaitTasks(IAsyncTaskHandler.java:119)
[Sun, 12. Jul 2020 07:50:40 EDT]     at net.minecraft.server.v1_16_R1.MinecraftServer.sleepForTick(MinecraftServer.java:1173)
[Sun, 12. Jul 2020 07:50:40 EDT]     at net.minecraft.server.v1_16_R1.MinecraftServer.v(MinecraftServer.java:1017)
[Sun, 12. Jul 2020 07:50:40 EDT]     at net.minecraft.server.v1_16_R1.MinecraftServer.lambda$a$0(MinecraftServer.java:178)
[Sun, 12. Jul 2020 07:50:40 EDT]     at java.base/java.lang.Thread.run(Thread.java:834)