Editing Address Area getting this in log

[KilgoreLSU]

When editing Customer Info, Address, Ship To.. Getting this in log.. It will work after a few attempts.

#0 /zc_plugins/EditOrders/v5.0.1/catalog/includes/classes/ajax/zcAjaxEditOrdersAdmin.php(36): zen_debug_error_handler()
#1 /ajax.php(77): zcAjaxEditOrdersAdmin->updateAddress()
#2 /KiwL_GolF_Kiwi/ajax.php(17): require('...')
--> PHP Warning: Undefined array key "eoChanges" in /zc_plugins/EditOrders/v5.0.1/catalog/includes/classes/ajax/zcAjaxEditOrdersAdmin.php on line 36.

[14-May-2025 17:52:01 America/Chicago] PHP Fatal error: Uncaught Error: Call to a member function getBuiltInAddressFields() on null in /zc_plugins/EditOrders/v5.0.1/catalog/includes/classes/ajax/zcAjaxEditOrdersAdmin.php:36
Stack trace:
#0 /ajax.php(77): zcAjaxEditOrdersAdmin->updateAddress()
#1 /KiwL_GolF_Kiwi/ajax.php(17): require('...')
#2 {main}
thrown in /zc_plugins/EditOrders/v5.0.1/catalog/includes/classes/ajax/zcAjaxEditOrdersAdmin.php on line 36

[14-May-2025 17:52:01 America/Chicago] Request URI: /ajax.php?act=ajaxEditOrdersAdmin&method=updateAddress, IP address: 66.186.233.223
--> PHP Fatal error: Uncaught Error: Call to a member function getBuiltInAddressFields() on null in /zc_plugins/EditOrders/v5.0.1/catalog/includes/classes/ajax/zcAjaxEditOrdersAdmin.php:36
Stack trace:
#0 /ajax.php(77): zcAjaxEditOrdersAdmin->updateAddress()
#1 /KiwL_GolF_Kiwi/ajax.php(17): require('...')
#2 {main}
thrown in /zc_plugins/EditOrders/v5.0.1/catalog/includes/classes/ajax/zcAjaxEditOrdersAdmin.php on line 36.

[14-May-2025 17:52:01 America/Chicago] Request URI: /ajax.php?act=ajaxEditOrdersAdmin&method=updateAddress, IP address: 66.186.233.223
--> PHP Fatal error: Uncaught Error: Call to a member function getBuiltInAddressFields() on null in /zc_plugins/EditOrders/v5.0.1/catalog/includes/classes/ajax/zcAjaxEditOrdersAdmin.php:36
Stack trace:
#0 /ajax.php(77): zcAjaxEditOrdersAdmin->updateAddress()
#1 /KiwL_GolF_Kiwi/ajax.php(17): require('...')
#2 {main}
thrown in /zc_plugins/EditOrders/v5.0.1/catalog/includes/classes/ajax/zcAjaxEditOrdersAdmin.php on line 36.

[lat9]

Hmm, that implies that EO's $_SESSION['eoChanges'] hasn't been 'registered' into the session. Let me 'play' a bit ...

[lat9]

I went to edit an order, clicked on the "Edit" button associated with the order's shipping address, changed an address element and saved ... successfully.

I'm guessing that it's some kind of sequencing thing, but I'll need to know the exact steps you've taken to get to the condition that's associated with that error.