Massive Amount of Errors in debug.log

More and more I am noticing this errors flooding our debug.log. What can we do to resolve this in a timely manner?

[02-Feb-2026 23:47:51 UTC] PHP Warning:  Undefined array key "slug" in /path/to/wordpress/wp-content/plugins/aftership-woocommerce-tracking/includes/class-aftership-actions.php on line 559
[02-Feb-2026 23:47:51 UTC] PHP Warning:  Undefined array key "additional_fields" in /path/to/wordpress/wp-content/plugins/aftership-woocommerce-tracking/includes/class-aftership-actions.php on line 563
[02-Feb-2026 23:47:51 UTC] PHP Warning:  Trying to access array offset on null in /path/to/wordpress/wp-content/plugins/aftership-woocommerce-tracking/includes/class-aftership-actions.php on line 563
[02-Feb-2026 23:47:51 UTC] PHP Warning:  Undefined array key "additional_fields" in /path/to/wordpress/wp-content/plugins/aftership-woocommerce-tracking/includes/class-aftership-actions.php on line 564
[02-Feb-2026 23:47:51 UTC] PHP Warning:  Trying to access array offset on null in /path/to/wordpress/wp-content/plugins/aftership-woocommerce-tracking/includes/class-aftership-actions.php on line 564
[02-Feb-2026 23:47:51 UTC] PHP Warning:  Undefined array key "additional_fields" in /path/to/wordpress/wp-content/plugins/aftership-woocommerce-tracking/includes/class-aftership-actions.php on line 565
[02-Feb-2026 23:47:51 UTC] PHP Warning:  Trying to access array offset on null in /path/to/wordpress/wp-content/plugins/aftership-woocommerce-tracking/includes/class-aftership-actions.php on line 565
[02-Feb-2026 23:47:51 UTC] PHP Warning:  Undefined array key "additional_fields" in /path/to/wordpress/wp-content/plugins/aftership-woocommerce-tracking/includes/class-aftership-actions.php on line 566
[02-Feb-2026 23:47:51 UTC] PHP Warning:  Trying to access array offset on null in /path/to/wordpress/wp-content/plugins/aftership-woocommerce-tracking/includes/class-aftership-actions.php on line 566
[02-Feb-2026 23:47:51 UTC] PHP Warning:  Undefined array key "additional_fields" in /path/to/wordpress/wp-content/plugins/aftership-woocommerce-tracking/includes/class-aftership-actions.php on line 567
[02-Feb-2026 23:47:51 UTC] PHP Warning:  Trying to access array offset on null in /path/to/wordpress/wp-content/plugins/aftership-woocommerce-tracking/includes/class-aftership-actions.php on line 567
[02-Feb-2026 23:47:51 UTC] PHP Warning:  Undefined array key "additional_fields" in /path/to/wordpress/wp-content/plugins/aftership-woocommerce-tracking/includes/class-aftership-actions.php on line 568
[02-Feb-2026 23:47:51 UTC] PHP Warning:  Trying to access array offset on null in /path/to/wordpress/wp-content/plugins/aftership-woocommerce-tracking/includes/class-aftership-actions.php on line 568