PHP
PHP Version: 7.1.25 (Zend: 3.1.0)
Here are a few things I have tried to change under configuration menu:

Trying to change Down For Maintenance to False
My Store>Telephone-Customer service - add info
Customer Details>Email Salutation, etc etc etc

WARNING: An Error occurred, please refresh the page and try again.

Error log says

[27-Dec-2018 23:32:39 UTC] Request URI: /admin/configuration.php?gID=1&cID=3&action=save, IP address: 67.143.193.32
#1 trigger_error() called at [/home/xxxxx/public_html/includes/classes/db/mysql/query_factory.php:171]
#2 queryFactory->show_error() called at [/home/xxxxx/public_html/includes/classes/db/mysql/query_factory.php:143]
#3 queryFactory->set_error() called at [/home/xxxxx/public_html/includes/classes/db/mysql/query_factory.php:270]
#4 queryFactory->Execute() called at [/home/xxxxx/public_html/admin/configuration.php:26]

[27-Dec-2018 23:32:39 UTC] PHP Fatal error: 1054:Unknown column 'val_function' in 'field list' :: SELECT val_function FROM configuration WHERE configuration_id = '3' ==> (as called by) /home/xxxxx/public_html/admin/configuration.php on line 26 <== in /home/xxxxx/public_html/includes/classes/db/mysql/query_factory.php on line 171

Is anyone else experiencing this?

Thanks!