Hi. These are the results from when I added the (int) suggestion at line 275 of payment/paypal.php

[30-Aug-2023 08:01:42 UTC] PHP Fatal error: Uncaught TypeError: Argument 2 passed to zen_get_zone_code() must be of the type int, string given, called in C:\wamp64\www\zencart158a\includes\modules\payment\paypal.php on line 290 and defined in C:\wamp64\www\zencart158a\includes\functions\functions_addresses.php:173
Stack trace:
#0 C:\wamp64\www\zencart158a\includes\modules\payment\paypal.php(290): zen_get_zone_code(222, '', 'YO')
#1 C:\wamp64\www\zencart158a\includes\classes\payment.php(279): paypal->process_button()
#2 C:\wamp64\www\zencart158a\includes\modules\pages\checkout_one_confirmation\heade r_php.php(407): payment->process_button()
#3 C:\wamp64\www\zencart158a\index.php(35): require('C:\\wamp64\\www\\z...')
#4 {main}
thrown in C:\wamp64\www\zencart158a\includes\functions\functions_addresses.php on line 173

[30-Aug-2023 08:01:42 UTC] Request URI: /zencart158a/index.php?main_page=checkout_one_confirmation, IP address: ::1
--> PHP Fatal error: Uncaught TypeError: Argument 2 passed to zen_get_zone_code() must be of the type int, string given, called in C:\wamp64\www\zencart158a\includes\modules\payment\paypal.php on line 290 and defined in C:\wamp64\www\zencart158a\includes\functions\functions_addresses.php:173
Stack trace:
#0 C:\wamp64\www\zencart158a\includes\modules\payment\paypal.php(290): zen_get_zone_code(222, '', 'YO')
#1 C:\wamp64\www\zencart158a\includes\classes\payment.php(279): paypal->process_button()
#2 C:\wamp64\www\zencart158a\includes\modules\pages\checkout_one_confirmation\heade r_php.php(407): payment->process_button()
#3 C:\wamp64\www\zencart158a\index.php(35): require('C:\\wamp64\\www\\z...')
#4 {main}
thrown in C:\wamp64\www\zencart158a\includes\functions\functions_addresses.php on line 173.

The only difference between logs 'appears' to have now moved the error from line 275 to line 290 of paypal.php. Nothing changed with fault though. Guest disabled it all works fine, when guest is enabled, the program still stalls and doesn't load up the PayPal window?