WordPress database error: [Duplicate key name 'application']
ALTER TABLE `wpok_nextend2_section_storage` ADD INDEX `application` (`application`, `section`(50), `referencekey`(50))

WordPress database error: [Duplicate key name 'application_2']
ALTER TABLE `wpok_nextend2_section_storage` ADD INDEX `application_2` (`application`, `section`(50))

WordPress database error: [Can't DROP 'thumbnail'; check that column/key exists]
ALTER TABLE `wpok_nextend2_smartslider3_slides` DROP INDEX `thumbnail`

WordPress database error: [Duplicate key name 'thumbnail']
ALTER TABLE `wpok_nextend2_smartslider3_slides` ADD INDEX `thumbnail` (`thumbnail`(100))