I throw myself upon the mercy of the court.

I am trying to find the source of the error below - -it is being generated dozens of times a day -- it doesn't seem to affect the function of the cart, but I think it would be good to resolve it, since its spitting out myDEBUG files by the thousands

Here's the error from the MyDEBUG file:

[25-Mar-2012 17:24:01] PHP Warning: Missing argument 2 for currencies::display_price(), called in /nfs/c06/h05/mnt/92537/domains/quinceandco.com/html/store/includes/templates/quince/templates/tpl_checkout_confirmation_default.php on line 139 and defined in /nfs/c06/h05/mnt/92537/domains/quinceandco.com/html/store/includes/classes/currencies.php on line 112

Line 139 in tpl_checkout_confirmation_default.php is:
Code:
<?php echo $currencies->display_price($order->products[$i]['price'], $order->products[$i]['tax']); ?>
And line 112 in /classes/currencies.php is:
Code:
function display_price($products_price, $products_tax, $quantity = 1)
My question is -- what is the missing "argument 2" -- is it the tax value or the quantity value (I don't know if PHP numbers arguments 1,2,3 or 0,1,2)

Thank you for your help.