Не сохраняются материалы настройка public $cache_handler = 'file'; что делать? - Каталоги, конструкторы контента (CCK)

Strict Standards: Only variables should be assigned by reference in /sata1/home/users/******/www/www.******.com/plugins/system/tz_portfolio/tz_portfolio.php on line 28 
Strict Standards: Declaration of TZ_PortfolioModelArticle::prepareTable() should be compatible with that of JModelAdmin::prepareTable() in /sata1/home/users/******/www/www.******.com/administrator/components/com_tz_portfolio/models/article.php on line 35 
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