Re: "VAT_SHOW_TEXT" messege
When a CONSTANT like this shows on your site, it usually means one of three things:
1. The definition for that constant does not exist, and you must create it
2. The php line that deals with that constant has been badly edited and is corrupted.
3. The php FILE that contains the constant is corrupted (or has been loaded into the wrong folder) and cannot be read properly by your zencart installation.
If this is appearing only on your Italian language, then it probably means that the constant has not been defined yet in the italian language file, or that a language file is faulty as described above.
SOMETIMES, if you have installed additional modules, they are built by people who only provide an English Language file. The constant that is troubling you:
VAT_SHOW_TEXT
is not a core constant, so must have been part of a module you uploaded.
Find this module, duplicate its language file, rename the file to suit the italian language installation, and edit the define for that constant.
Make sure the edited and renamed file is then ftp'd to the correct folder. To see where it ought to go, look at where it lives (and how it is structured) in the GERMAN version. This will help you duplicate the file and store it in the right place for your ITALIAN version.
Re: "VAT_SHOW_TEXT" messege
Thanks for the answer. I'll check....