У вас префикс "s_"
Так пробуйте.
CREATE TABLE IF NOT EXISTS `s_order_links` (
`link_id` int(11) NOT NULL AUTO_INCREMENT,
`order_id` int(11) NOT NULL,
`product_id` int(11) NOT NULL,
`code` varchar(64) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL,
`date_end` datetime NOT NULL,
`ikey` int(11) NOT NULL,
PRIMARY KEY (`link_id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 AUTO_INCREMENT=1 ;
ALTER TABLE `s_product` DROP COLUMN `infoproduct`;
ALTER TABLE `s_product` ADD COLUMN `infoproduct` LONGTEXT CHARACTER SET utf8 COLLATE utf8_bin NOT NULL;
DELETE FROM `s_url_alias` WHERE query = 'extension/module/infoproduct';
INSERT INTO `s_url_alias` (`query`, `keyword`) VALUES ('extension/module/infoproduct', 'link');