0 (zero) at no billing address

[Ixelink]

Hi!

I am on my way now: J2.5.14 and VM2.0.22a; the cart is working with wonderful catproduct and now I noticed a 0 (zero) for the billing address in the cart when someone is not logged in in the webshop.
Can I change that into, let's say, a - (stripe), or something else? Where then or how? I can't trace the file....

Greetings,
Maarten

[Maxim Pishnyak]

I can't trace the file....

...me too. link?

So without catproduct everything is fine?