reworked script host, working on nbttags

src/main/java/carpet/script/value/LazyListValue.java

@@ -106,4 +106,10 @@ public abstract class LazyListValue extends ListValue implements Iterator<Value>
         return false;
     }
 
+    @Override
+    public Value getElementAt(Value v2)
+    {
+        throw new InternalExpressionException("get element can only be obtained for regular lists");
+    }
+
 }