Odd warning log popped up multiple times within a few minutes of each other

[wsworx]

ZC 2.1
PHP 8.3
customer_tax_exempt_2.0.2
edit_orders-5.0.2
paypalr-1.2.1
sales_report-4.0.2
sitemapxml-4.0.4
usps-USPS_2024_08_25_K11l
zen_Image-Handler-5.3.5
zen_TyPackageTracker-5.0.1

The following warning log popped up five times over about 4 minutes.
Any insight would be greatly appreciated. Thank You!

[22-Sep-2025 20:53:18 America/Boise] Request URI: /index.php?main_page=checkout_payment_address, IP address: ***.***.***.***, Language id 1
#0 /public_html/includes/modules/checkout_new_address.php(32): zen_debug_error_handler()
#1 /public_html/includes/modules/pages/checkout_payment_address/header_php.php(34): require('
/...')
#2 /public_html/index.php(35): require('/...')
--> PHP Warning: Undefined array key "gender" in /public_html/includes/modules/checkout_new_address.php on line 32.

[lat9]

ZC 2.1
PHP 8.3
customer_tax_exempt_2.0.2
edit_orders-5.0.2
paypalr-1.2.1
sales_report-4.0.2
sitemapxml-4.0.4
usps-USPS_2024_08_25_K11l
zen_Image-Handler-5.3.5
zen_TyPackageTracker-5.0.1

The following warning log popped up five times over about 4 minutes.
Any insight would be greatly appreciated. Thank You!

[22-Sep-2025 20:53:18 America/Boise] Request URI: /index.php?main_page=checkout_payment_address, IP address: ***.***.***.***, Language id 1
#0 /public_html/includes/modules/checkout_new_address.php(32): zen_debug_error_handler()
#1 /public_html/includes/modules/pages/checkout_payment_address/header_php.php(34): require('
/...')
#2 /public_html/index.php(35): require('/...')
--> PHP Warning: Undefined array key "gender" in /public_html/includes/modules/checkout_new_address.php on line 32.

Corrected post zc210 release via this commit: https://github.com/zencart/zencart/c...36e7f4575720a6

Essentially, add the highlighted section to line 32 of that script:

          $gender = zen_db_prepare_input($_POST['gender'] ?? '');

[wsworx]

Your just the best lat9, thank you as always!