uc_store_process_address_field() error on Store Configuration page

The only way I can see that this could happen is if you don't have your store country installed/enabled at admin/store/settings/countries. I can't reproduce this otherwise.

Hi TR
Please help me out with this
how do I install/enable a country on admin/store/settings/countries
if Coutries tab is empty

I have 3 tabs

1. Coutries tab wich is empty

2. Address Field tab

First name enable REQUIRED
Last name enable REQUIRED
Company enable
Street address 1 enable REQUIRED
Street address 2 enable
City enable REQUIRED
State/Province enable REQUIRED
Country enable REQUIRED
Postal code enable REQUIRED
Phone numbe enable REQUIRED

3. Address Formats Tab

ADDRESS FORMAT VARIABLES
!first_name Customer's first name
!last_name Customer's last name
!company Company name
!street1 First street address field
!street2 Second street address field
!city City name
!zone_name Full name of the zone
!zone_code Abbreviation of the zone
!postal_code Postal code
!country_name Name of the country
!country_code2 2 digit country abbreviation
!country_code3 3 digit country abbreviation

I found out
modules\ubercart\uc_store\countries
folder was empty
Thanks any way