WordPress database error: [Key column 'system' doesn't exist in table]
ALTER TABLE wp_nextend2_section_storage ADD INDEX `system` (`system`)

WordPress database error: [Unknown column 'system' in 'field list']
SELECT `id`, `referencekey`, `value`, `system`, `editable` FROM wp_nextend2_section_storage WHERE `application` = 'smartslider' AND `section` = 'settings' AND `referencekey` = ''

WordPress database error: [Unknown column 'system' in 'field list']
INSERT INTO `wp_nextend2_section_storage` (`application`, `section`, `value`, `system`, `editable`, `referencekey`) VALUES ('smartslider', 'settings', '{\"n2_ss3_version\":\"3.4.1.9\\/b:release-3.4.1.9\\/r:ff7f6f5b913ef30a4f05bac46d8c29a2841babcb\"}', '0', '1', '')

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