Category Listing, Product Page blank in Frontend

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2013-03-13 14:31:40 - PHP Notice:  Undefined offset: -1 in /root/catalog/controller/common/header.php on line 187
2013-03-13 14:31:48 - PHP Notice:  Error: Column 'product_id' cannot be null<br />Error No: 1048<br />/root/opencart_dev/system/database/mysql.php on line 49

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$this->data['navdata'] = showCategories($this, $navmenus, $pathparts, $pathparts[count($pathparts)-1], $hide);

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SELECT DISTINCT *, pd.name, pd.creator, pd.keyword, pd.circa, pd.year, pd.century, pd.decade, pd.scenelocation, pd.fm_quicksearch AS fm_quicksearch, p.image, m.name AS manufacturer, (SELECT price FROM product_discount pd2 WHERE pd2.product_id = p.product_id AND pd2.customer_group_id = '8' AND pd2.quantity = '1' AND ((pd2.date_start = '0000-00-00' OR pd2.date_start < NOW()) AND (pd2.date_end = '0000-00-00' OR pd2.date_end > NOW())) ORDER BY pd2.priority ASC, pd2.price ASC LIMIT 1) AS discount, (SELECT price FROM product_special ps WHERE ps.product_id = p.product_id AND ps.customer_group_id = '8' AND ((ps.date_start = '0000-00-00' OR ps.date_start < NOW()) AND (ps.date_end = '0000-00-00' OR ps.date_end > NOW())) ORDER BY ps.priority ASC, ps.price ASC LIMIT 1) AS special, (SELECT points FROM product_reward pr WHERE pr.product_id = p.product_id AND customer_group_id = '8') AS reward, (SELECT ss.name FROM stock_status ss WHERE ss.stock_status_id = p.stock_status_id AND ss.language_id = '1') AS stock_status, (SELECT wcd.unit FROM weight_class_description wcd WHERE p.weight_class_id = wcd.weight_class_id AND wcd.language_id = '1') AS weight_class, (SELECT lcd.unit FROM length_class_description lcd WHERE p.length_class_id = lcd.length_class_id AND lcd.language_id = '1') AS length_class, (select (r.sum + p.rat)/(r.tot + p.tot) from (select COALESCE(j.sum,0) as sum , COALESCE(j.tot,0) as tot from (select SUM(rating) as sum , COUNT(rating) as tot, product_id from rating where product_id = '9206' group by product_id) j right join product on product.product_id = j.product_id where product.product_id = '9206') r, (select product_id, COALESCE(rating,0) as rat, count(rating) as tot from product where product_id = '9206' and rating > 0) p ) AS rating, p.sort_order FROM product p LEFT JOIN product_description pd ON (p.product_id = pd.product_id) LEFT JOIN product_to_store p2s ON (p.product_id = p2s.product_id) LEFT JOIN manufacturer m ON (p.manufacturer_id = m.manufacturer_id) WHERE p.product_id = '9206' AND pd.language_id = '1' AND p.status = '1' AND p.date_available <= NOW() AND p2s.store_id = '5'

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 public function getProduct($product_id) {
        if ($this->customer->isLogged()) {
            $customer_group_id = $this->customer->getCustomerGroupId();
        } else {
            $customer_group_id = $this->config->get('config_customer_group_id');
        }

        $query = $this->db->query("SELECT DISTINCT *, pd.name, pd.creator, pd.keyword, pd.circa, pd.year, pd.century, pd.decade, pd.scenelocation, pd.fm_quicksearch AS fm_quicksearch, p.image, m.name AS manufacturer, (SELECT price FROM " . DB_PREFIX . "product_discount pd2 WHERE pd2.product_id = p.product_id AND pd2.customer_group_id = '" . (int)$customer_group_id . "' AND pd2.quantity = '1' AND ((pd2.date_start = '0000-00-00' OR pd2.date_start < NOW()) AND (pd2.date_end = '0000-00-00' OR pd2.date_end > NOW())) ORDER BY pd2.priority ASC, pd2.price ASC LIMIT 1) AS discount, (SELECT price FROM " . DB_PREFIX . "product_special ps WHERE ps.product_id = p.product_id AND ps.customer_group_id = '" . (int)$customer_group_id . "' AND ((ps.date_start = '0000-00-00' OR ps.date_start < NOW()) AND (ps.date_end = '0000-00-00' OR ps.date_end > NOW())) ORDER BY ps.priority ASC, ps.price ASC LIMIT 1) AS special, (SELECT points FROM " . DB_PREFIX . "product_reward pr WHERE pr.product_id = p.product_id AND customer_group_id = '" . (int)$customer_group_id . "') AS reward, (SELECT ss.name FROM " . DB_PREFIX . "stock_status ss WHERE ss.stock_status_id = p.stock_status_id AND ss.language_id = '" . (int)$this->config->get('config_language_id') . "') AS stock_status, (SELECT wcd.unit FROM " . DB_PREFIX . "weight_class_description wcd WHERE p.weight_class_id = wcd.weight_class_id AND wcd.language_id = '" . (int)$this->config->get('config_language_id') . "') AS weight_class, (SELECT lcd.unit FROM " . DB_PREFIX . "length_class_description lcd WHERE p.length_class_id = lcd.length_class_id AND lcd.language_id = '" . (int)$this->config->get('config_language_id') . "') AS length_class, (select (r.sum + p.rat)/(r.tot + p.tot) from (select COALESCE(j.sum,0) as sum , COALESCE(j.tot,0) as tot from (select SUM(rating) as sum , COUNT(rating) as tot, product_id from  " . DB_PREFIX . "rating where product_id = '" . (int)$product_id . "' group by product_id) j right join  " . DB_PREFIX . "product on product.product_id = j.product_id where product.product_id = '" . (int)$product_id . "') r, (select product_id, COALESCE(rating,0) as rat, count(rating) as tot from  " . DB_PREFIX . "product where product_id = '" . (int)$product_id . "' and rating > 0) p ) AS rating, p.sort_order FROM " . DB_PREFIX . "product p LEFT JOIN " . DB_PREFIX . "product_description pd ON (p.product_id = pd.product_id) LEFT JOIN " . DB_PREFIX . "product_to_store p2s ON (p.product_id = p2s.product_id) LEFT JOIN " . DB_PREFIX . "manufacturer m ON (p.manufacturer_id = m.manufacturer_id) WHERE p.product_id = '" . (int)$product_id . "' AND pd.language_id = '" . (int)$this->config->get('config_language_id').  "'" .(!$this->customer->isAdmin()? " AND p.status = '1'" : "") . " AND p.date_available <= NOW() AND p2s.store_id = '" . (int)$this->config->get('config_store_id') . "'");

        if ($query->num_rows) {
            $query->row['price'] = ($query->row['discount'] ? $query->row['discount'] : $query->row['price']);
            $query->row['rating'] = (int)$query->row['rating'];

            return $query->row;
        } else {
            return false;
        }
    }