JInstaller::install: Ошибка SQL DB function failed with error number 1005 - Joomla 1.5: Общие вопросы

JInstaller::install: Ошибка SQL DB function failed with error number 1005
Can't create table '.\portsd\jos_adsmanager_ads.frm' (errno: 121) SQL=CREATE TABLE IF NOT EXISTS `jos_adsmanager_ads` ( `id` int(10) unsigned NOT NULL auto_increment, `category` int(10) unsigned default '0', `userid` int(10) unsigned default NULL, `name` text, `ad_zip` text, `ad_city` text, `ad_phone` text, `email` text, `ad_kindof` text, `ad_headline` text, `ad_text` text, `ad_state` text NOT NULL, `ad_price` text, `date_created` date default NULL, `date_recall` date default NULL, `recall_mail_sent` tinyint(1) default '0', `views` int(10) unsigned default '0', `published` tinyint(1) default '1', PRIMARY KEY (`id`) );
SQL = 
CREATE TABLE IF NOT EXISTS `jos_adsmanager_ads` (
			  `id` int(10) unsigned NOT NULL auto_increment,
			  `category` int(10) unsigned default '0',
			  `userid` int(10) unsigned default NULL,
			  `name` text,
			  `ad_zip` text,
			  `ad_city` text,
			  `ad_phone` text,
			  `email` text,
			  `ad_kindof` text,
			  `ad_headline` text,
			  `ad_text` text,
			  `ad_state` text NOT NULL,
			  `ad_price` text,
			  `date_created` date default NULL,
			  `date_recall` date default NULL,
			  `recall_mail_sent` tinyint(1) default '0',
			  `views` int(10) unsigned default '0',
			  `published` tinyint(1) default '1',
			  PRIMARY KEY  (`id`)
			);