Error calling ItemID 29668

I am getting errors on calling item id 29668


=EVEONLINE.MARKET_ORDERS_STATS(10000002, 29668)
This gives me a #value error

=MIN(EVEONLINE.MARKET_ORDERS(10000002, 29668, 0).price)
this gives me a field error

However, Item 999 (the default for ORDERS) and 587 (default for STATS) works just fine in both.

for those who do not know 29668 is PLEX, or is supposed to be?