WordPress database error: [Column 'class_id' cannot be null]
INSERT INTO `pts_transactions_classes` (`transaction_id`, `class_id`, `quantity`) VALUES ('1084425', NULL, '1')

WordPress database error: [Column 'class_id' cannot be null]
INSERT INTO `pts_transactions_classes` (`transaction_id`, `class_id`, `quantity`) VALUES ('1084425', NULL, '1')