[20:51:18 ERROR]:               org.bukkit.craftbukkit.v1_14_R1.inventory.CraftMetaItem.<init>(CraftMetaItem.java:358)
[20:51:18 ERROR]:               org.bukkit.craftbukkit.v1_14_R1.inventory.CraftItemStack.getItemMeta(CraftItemStack.java:477)
[20:51:18 ERROR]:               org.bukkit.craftbukkit.v1_14_R1.inventory.CraftItemStack.getItemMeta(CraftItemStack.java:274)
[20:51:18 ERROR]:               io.github.thebusybiscuit.slimefun4.core.services.CustomItemDataService.getItemData(CustomItemDataService.java:31)
[20:51:18 ERROR]:               me.mrCookieSlime.Slimefun.Objects.SlimefunItem.SlimefunItem.isItem(SlimefunItem.java:326)
[20:51:18 ERROR]:               me.mrCookieSlime.Slimefun.Objects.SlimefunItem.SlimefunItem.getByItem(SlimefunItem.java:309)
[20:51:18 ERROR]:               me.mrCookieSlime.Slimefun.listeners.ItemListener.onPrepareCraft(ItemListener.java:395)