Error At Customer Checkout

Store Builder Questions
1

This is what i get when a customer tries to checkout... Any help?

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2

Please check answer here:

http://forum.cs-cart.com/topic/42505-unknown-column-order-id-in-field-list-1054/?fromsearch=1

Note that in your case the query should be modified:

ALTER TABLE `12b_user_session_products` ADD COLUMN `order_id` INT DEFAULT 0 NOT NULL