Error Asentio System

Non-static method Load::helper() should not be called statically, assuming $this from incompatible context

/home/norbert/domains/t8.pl/public_html/psy/app/lib/class.index.php [87]

83

84
        if(!empty($row['description'])) $this->meta_description $row['description'];
85
        $art $this->view->load('article.php');
86

87
        Load::helper('url');
88
        $this->addPath($row['parentname'],$row['parentalias']);
89
        $this->addPath($row['category'],$row['alias']);
90
        $this->addPath($row['title'],($row['id'].','.url_friendly($row['title'])).'.html');
91

92
        return $art;