Leave it to me to screw up a simple process!!!!

I THINK what I posted was an admin log - I get a reegular log error and the adm one and the both look much the same. I am posting the NON adm error log here - there are some subtle differences.

Would it help to reinstall the admin files?

Here is the code:

HTML Code:
[21-Jul-2020 00:01:42 UTC] Request URI: /catalog/index.php?main_page=checkout_process, IP address: 162.72.107.178
#1  trigger_error() called at [/home/afamblck/public_html/catalog/includes/classes/db/mysql/query_factory.php:170]
#2  queryFactory->show_error() called at [/home/afamblck/public_html/catalog/includes/classes/db/mysql/query_factory.php:142]
#3  queryFactory->set_error() called at [/home/afamblck/public_html/catalog/includes/classes/db/mysql/query_factory.php:269]
#4  queryFactory->Execute() called at [/home/afamblck/public_html/catalog/includes/classes/observers/CheckoutOneEmailObserver.php:62]
#5  CheckoutOneEmailObserver->update() called at [/home/afamblck/public_html/catalog/includes/classes/class.base.php:118]
#6  base->notify() called at [/home/afamblck/public_html/catalog/includes/functions/functions_osh_update.php:89]
#7  zen_update_orders_history() called at [/home/afamblck/public_html/catalog/includes/modules/payment/paypalwpp.php:501]
#8  paypalwpp->after_process() called at [/home/afamblck/public_html/catalog/includes/classes/payment.php:261]
#9  payment->after_process() called at [/home/afamblck/public_html/catalog/includes/modules/pages/checkout_process/header_php.php:17]
#10 require(/home/afamblck/public_html/catalog/includes/modules/pages/checkout_process/header_php.php) called at [/home/afamblck/public_html/catalog/index.php:35]
--> PHP Fatal error: 1054:Unknown column 'is_guest_order' in 'field list' :: SELECT is_guest_order
                       FROM zen_orders
                      WHERE orders_id = 4582
                      LIMIT 1 ==> (as called by) /home/afamblck/public_html/catalog/includes/classes/observers/CheckoutOneEmailObserver.php on line 62 <== in /home/afamblck/public_html/catalog/includes/classes/db/mysql/query_factory.php on line 170.
Quote Originally Posted by lat9 View Post
I've no idea what you've done, but for zc157 OPC's (other than a couple of CSS files and a minor change to the information side-box) a drop-in install. The admin installation should have added that element to the orders table, just like it adds its configuration settings to the configuration table.

Were/are there any admin-related debug-logs?