Quote Originally Posted by Ajeh View Post
Go to your Zen Cart Admin and go to Locations / Taxes ... Countries ...

Find Italy ...

Click on it and look in the URL, what is the cID for that?

What are the other settings for the whole row?
url and cID = /countries.php?page=6&cID=105
Setting = ISO Code (2): IT ISO Code (3): ITA Address Format: 5

Next, go to the Customers in the Admin, and EDIT the customer that you are using for this checkout ...

Is the Country setup right for Italy?

I am assuming that this is your test Customer account that you are testing things with and that you can login as that customer ...

Login as that Customer and go to the My Account and check the Addresses setup for it ...

Edit the one(s) for Italy and do an Update ...
Yes is the account i use for testing, and i can login as customer.
Did as You say, edited the adresses and saved it (was already set with Italy as country)

Yet the error is generated.

So far, nothing I have done in testing here as triggered this error that you are getting ...
May I ask what version of PHP and MYSQL are You testing on?

You have Zone Rates setup to Weight and have the Skip Countries set to:
IT

You have only the first Zone 1 defined as:
US, CA

and are not using any other Zones ...

The only other shipping module installed is Flat Rate flat and the Zone Rate zones is green dot and Flat Rate flat is green dot and ALL other shipping modules are red dots ... correct?
All damned correct...
I've tryed this thing on a fresh new install, no mods or anything and the error is generated in the same way, the only thing i'm gonna try is using the very base Zencart 1.51 not the Italian version (localization made by www.zencartitalia.it).