Array
(
    [callback] => Array
        (
            [0] => CRM_Core_Error
            [1] => handle
        )

    [code] => -1
    [message] => DB Error: unknown error
    [mode] => 16
    [debug_info] => DELETE FROM civicrm_contact  WHERE (  civicrm_contact.id = 110 )  [nativecode=1451 ** Cannot delete or update a parent row: a foreign key constraint fails (`psoj_civicrm/civicrm_note`, CONSTRAINT `FK_civicrm_note_contact_id` FOREIGN KEY (`contact_id`) REFERENCES `civicrm_contact` (`id`))]
    [type] => DB_Error
    [user_info] => DELETE FROM civicrm_contact  WHERE (  civicrm_contact.id = 110 )  [nativecode=1451 ** Cannot delete or update a parent row: a foreign key constraint fails (`psoj_civicrm/civicrm_note`, CONSTRAINT `FK_civicrm_note_contact_id` FOREIGN KEY (`contact_id`) REFERENCES `civicrm_contact` (`id`))]
    [to_string] => [db_error: message="DB Error: unknown error" code=-1 mode=callback callback=CRM_Core_Error::handle prefix="" info="DELETE FROM civicrm_contact  WHERE (  civicrm_contact.id = 110 )  [nativecode=1451 ** Cannot delete or update a parent row: a foreign key constraint fails (`psoj_civicrm/civicrm_note`, CONSTRAINT `FK_civicrm_note_contact_id` FOREIGN KEY (`contact_id`) REFERENCES `civicrm_contact` (`id`))]"]
)