These are the debug log files that are created when the "Checkout" button is clicked, prompting the popup:

[20-Nov-2021 19:15:31 UTC] PHP Notice: Constant BUTTON_RETURN_TO_PROD_LIST_ALT already defined in /includes/languages/english/extra_definitions/psdinnerZCA/zca_bootstrap_common.php on line 20
[20-Nov-2021 19:15:31 UTC] PHP Notice: Constant TABLE_HEADING_PRODUCTS already defined in /includes/languages/english/extra_definitions/psdinnerZCA/zca_bootstrap_common.php on line 63

and then when "OK" is clicked on the pop up this is what is generated:


[20-Nov-2021 19:15:31 UTC] PHP Notice: Constant BUTTON_RETURN_TO_PROD_LIST_ALT already defined in /includes/languages/english/extra_definitions/psdinnerZCA/zca_bootstrap_common.php on line 20
[20-Nov-2021 19:15:31 UTC] PHP Notice: Constant TABLE_HEADING_PRODUCTS already defined in /includes/languages/english/extra_definitions/psdinnerZCA/zca_bootstrap_common.php on line 63
[20-Nov-2021 19:15:31 UTC] PHP Notice: Constant NAVBAR_TITLE_1 already defined in /includes/languages/english/checkout_one_confirmation.php on line 6
[20-Nov-2021 19:15:31 UTC] PHP Notice: Constant NAVBAR_TITLE_2 already defined in /includes/languages/english/checkout_one_confirmation.php on line 7
[20-Nov-2021 19:15:31 UTC] PHP Notice: Constant HEADING_TITLE already defined in /includes/languages/english/checkout_one_confirmation.php on line 9
[20-Nov-2021 19:15:31 UTC] PHP Notice: Constant HEADING_BILLING_ADDRESS already defined in /includes/languages/english/checkout_one_confirmation.php on line 11
[20-Nov-2021 19:15:31 UTC] PHP Notice: Constant HEADING_DELIVERY_ADDRESS already defined in /includes/languages/english/checkout_one_confirmation.php on line 12
[20-Nov-2021 19:15:31 UTC] PHP Notice: Constant HEADING_SHIPPING_METHOD already defined in /includes/languages/english/checkout_one_confirmation.php on line 13
[20-Nov-2021 19:15:31 UTC] PHP Notice: Constant HEADING_PAYMENT_METHOD already defined in /includes/languages/english/checkout_one_confirmation.php on line 14
[20-Nov-2021 19:15:31 UTC] PHP Notice: Constant HEADING_PRODUCTS already defined in /includes/languages/english/checkout_one_confirmation.php on line 15
[20-Nov-2021 19:15:31 UTC] PHP Notice: Constant HEADING_TAX already defined in /includes/languages/english/checkout_one_confirmation.php on line 16
[20-Nov-2021 19:15:31 UTC] PHP Notice: Constant HEADING_ORDER_COMMENTS already defined in /includes/languages/english/checkout_one_confirmation.php on line 17
[20-Nov-2021 19:15:31 UTC] PHP Notice: Constant NO_COMMENTS_TEXT already defined in /includes/languages/english/checkout_one_confirmation.php on line 19
[20-Nov-2021 19:15:31 UTC] PHP Notice: Constant ERROR_PLEASE_RESELECT_SHIPPING_METHOD already defined in /includes/languages/english/checkout_one_confirmation.php on line 26
[20-Nov-2021 19:15:31 UTC] PHP Notice: Constant MODULE_ORDER_TOTAL_COUPON_HEADER already defined in /includes/languages/english/modules/order_total/psdinnerZCA/ot_coupon.php on line 14
[20-Nov-2021 19:15:31 UTC] PHP Notice: Constant SHIPPING_NOT_INCLUDED already defined in /includes/languages/english/modules/order_total/psdinnerZCA/ot_gv.php on line 13
[20-Nov-2021 19:15:31 UTC] PHP Notice: Constant TAX_NOT_INCLUDED already defined in /includes/languages/english/modules/order_total/psdinnerZCA/ot_gv.php on line 14