09.05 23:02:04 [Server] ERROR Current Thread: Server thread
09.05 23:02:04 [Server] ERROR PID: 24 | Suspended: false | Native: false | State: RUNNABLE
09.05 23:02:04 [Server] ERROR Stack:
09.05 23:02:04 [Server] ERROR java.util.HashMap.containsKey(HashMap.java:596)
09.05 23:02:04 [Server] ERROR net.minecraft.server.v1_13_R2.NBTTagCompound.hasKey(NBTTagCompound.java:161)
09.05 23:02:04 [Server] ERROR org.bukkit.craftbukkit.v1_13_R2.inventory.CraftMetaItem.<init>(CraftMetaItem.java:368)
09.05 23:02:04 [Server] ERROR org.bukkit.craftbukkit.v1_13_R2.inventory.CraftMetaSkull.<init>(CraftMetaSkull.java:48)
09.05 23:02:04 [Server] ERROR org.bukkit.craftbukkit.v1_13_R2.inventory.CraftItemStack.getItemMeta(CraftItemStack.java:308)
09.05 23:02:04 [Server] ERROR org.bukkit.craftbukkit.v1_13_R2.inventory.CraftItemStack.getItemMeta(CraftItemStack.java:284)
09.05 23:02:04 [Server] ERROR org.bukkit.inventory.ItemStack.<init>(ItemStack.java:98)
09.05 23:02:04 [Server] ERROR me.mrCookieSlime.CSCoreLibPlugin.general.Inventory.Item.CustomItem.<init>(CustomItem.java:113)
09.05 23:02:04 [Server] ERROR me.mrCookieSlime.Slimefun.api.item_transport.CargoManager.insert(CargoManager.java:142)
09.05 23:02:04 [Server] ERROR me.mrCookieSlime.Slimefun.api.item_transport.CargoNet.lambda$tick$90(CargoNet.java:363)
09.05 23:02:04 [Server] ERROR me.mrCookieSlime.Slimefun.api.item_transport.CargoNet$$Lambda$3225/1668059880.run(Unknown Source)
09.05 23:02:04 [Server] ERROR org.bukkit.craftbukkit.v1_13_R2.scheduler.CraftTask.run(CraftTask.java:84)
09.05 23:02:04 [Server] ERROR org.bukkit.craftbukkit.v1_13_R2.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:449)
09.05 23:02:04 [Server] ERROR net.minecraft.server.v1_13_R2.MinecraftServer.b(MinecraftServer.java:1010)
09.05 23:02:04 [Server] ERROR net.minecraft.server.v1_13_R2.DedicatedServer.b(DedicatedServer.java:439)
09.05 23:02:04 [Server] ERROR net.minecraft.server.v1_13_R2.MinecraftServer.a(MinecraftServer.java:940)
09.05 23:02:04 [Server] ERROR net.minecraft.server.v1_13_R2.MinecraftServer.run(MinecraftServer.java:837)
09.05 23:02:04 [Server] ERROR java.lang.Thread.run(Thread.java:748)