It looks like something went wrong.You should have an extra column in the ost_staff table, and you should have ost_translation table in your database. You will want to look at the setup files to fix this. extra is just a text field so it should be easy enough to construct a mysql query to add it. Here is the SQL code to add the ost_translation table, just replace %TABLE_PREFIX% with your table prefix.CREATE TABLE `%TABLE_PREFIX%translation` (
`id` int(11) unsigned NOT NULL AUTO_INCREMENT,
`object_hash` char(16) CHARACTER SET ascii DEFAULT NULL,
`type` enum('phrase','article','override') DEFAULT NULL,
`flags` int(10) unsigned NOT NULL DEFAULT '0',
`revision` int(11) unsigned DEFAULT NULL,
`agent_id` int(10) unsigned NOT NULL DEFAULT '0',
`lang` varchar(16) NOT NULL DEFAULT '',
`text` mediumtext NOT NULL,
`source_text` text,
`updated` timestamp NULL DEFAULT NULL ON UPDATE CURRENT_TIMESTAMP,
PRIMARY KEY (`id`),
KEY `type` (`type`,`lang`),
KEY `object_hash` (`object_hash`)
) DEFAULT CHARSET=utf8;