You have three tables missing, so before do the following things, backup your database and create new tables by using this, use phpmyadmin :
Code:
CREATE TABLE IF NOT EXISTS `#__fb_announcement` (
`id` int(3) NOT NULL auto_increment,
`title` tinytext NOT NULL,
`sdescription` text NOT NULL,
`description` text NOT NULL,
`created` datetime NOT NULL default '0000-00-00 00:00:00',
`published` tinyint(1) NOT NULL default '0',
`ordering` tinyint(4) NOT NULL default '0',
`showdate` tinyint(1) NOT NULL default '1',
PRIMARY KEY (`id`) ) DEFAULT CHARSET=utf8
CREATE TABLE IF NOT EXISTS `#__fb_attachments` (
`mesid` int(11) NOT NULL default '0',
`filelocation` text NOT NULL,
KEY `mesid` (`mesid`) ) DEFAULT CHARSET=utf8
CREATE TABLE IF NOT EXISTS `#__fb_moderation` (
`catid` int(11) NOT NULL default '0',
`userid` int(11) NOT NULL default '0',
`future1` tinyint(4) default '0',
`future2` int(11) default '0',
PRIMARY KEY (`catid`,`userid`) ) DEFAULT CHARSET=utf8
