Hi, you have checked out the HEAD this is why you experience this error. It is an old source. You need to checkout the DEVELOPMENT BRANCH. The documentation is inside facecart.env/docs.
PS: Use our new forum at facecart.com from now on.
In the customer frontend in the shopping cart view it is possible to enter negative value for input and do the checkout.
I think that it would be good if a JSF validator is created who check the user input if the value is negative or illegal. Also it woould be nice if we have a javascript that is checking the key strokes and accepting only numeric values.
