After upgrade, options do not work

This worked fine until the upgrade!

-- 4mymerles.com/collars-leashes/slip-leash...ed-slip-collar-leash
HikaShop Business 2.2.3, Joomla!™ Shopping Cart Extension
Joomal2.5.7
-- PHP version -- : x.x.x
All browsers
This is the message I get when I try and add to cart

The product Fleece Color Two: Black is not available
The product Fleece Color: Black is not available
The product Embroidery Color: Blue 1 is not available
The product Poly Webbing Color: Beige is not available


Please advise - a file has been attached with more info

It's probably because you have the "display add to cart button for free products" option turned off in the configuration.
We actually fixed a bug whereby users could purchase free options even though that option was turned off and it's not the case anymore.

So where do I set that option in the administrator

I found the option and will now see if that solves the problem