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    SELECT
        ad.id,
        ad.title,
        ad.subtitle,
        ad.lead,
        ad.description,
        ad.active,
        main.quantity,
        main.art_nr
    FROM
        xt_catalog_articles_details as ad
    LEFT JOIN
        xt_catalog_articles as main ON(main.id = ad.id)
    WHERE
        ad.lang='en'
    AND
        ad.active=1
    AND
        main.id=<br><br>In File: <span style="color:red;">/var/www/vhosts/amann-mettler.com/httpdocs/xt/plugins/ch.iframe.snode.catalog/product_viewer/index.php</span><br />On Line: <span style="color:red;">30</span><br />
<b>Fatal error</b>:  Call to a member function FetchRow() on a non-object in <b>/var/www/vhosts/amann-mettler.com/httpdocs/xt/includes/classes/xt.class.php</b> on line <b>459</b><br />