<b>MySQL server error report:Array
(
    [0] => Array
        (
            [message] => MySQL Query Error
        )

    [1] => Array
        (
            [sql] => INSERT INTO `domdb`.`yp_cart` (session_id,product_id,quantity) VALUES ('74c001d350503f4519b53957a4f2b1cd', '4090','')
        )

    [2] => Array
        (
            [error] => Duplicate entry '1949746' for key 'PRIMARY'
        )

    [3] => Array
        (
            [errno] => 1062
        )

)