Stupid question, but lines 51 and 52 of 100.php say:
PHP Code:
self::$db->query_write("ALTER TABLE `" . TABLE_PREFIX . "thread` ADD ADD `dbtech_thanks_enablelike` ENUM( '0', '1' ) NOT NULL DEFAULT '1'");
self::$db->query_write("ALTER TABLE `" . TABLE_PREFIX . "thread` ADD ADD `dbtech_thanks_enabledislike` ENUM( '0', '1' ) NOT NULL DEFAULT '1'");
Could the double "ADD" be messing it up at all?