Merge pull request #1 from GTNewHorizons/item-fixer-utility-null-item

Fix crash caused by processing null item

src/main/java/com/colen/postea/utility/ItemFixerUtility.java

@@ -18,6 +18,7 @@ public abstract class ItemFixerUtility {
         if (tag.hasKey("id")) {
             short id = tag.getShort("id");
             Item item = Item.getItemById(id);
+            if (item == null) return;
             String itemNameInternal = GameRegistry.findUniqueIdentifierFor(item).modId + ":"
                 + GameRegistry.findUniqueIdentifierFor(item).name;