Question xmap installation avec erreur

foreach ($rows as $row) {

$query = "select * from #__xmap_items where view='$view' and sitemap_id=".$this->id;
$db->setQuery($query);
$rows = $db->loadObjectList();
$this->_items[$view] = array();
foreach ($rows as $row) {
$this->_items[$view][$row->itemid] = array();
$this->_items[$view][$row->itemid][$row->uid] = array();
$pairs = explode(';',$row->properties);
foreach ($pairs as $pair) {
if (strpos($pair,'=') !== FALSE) {
list($property,$value) = explode('=',$pair);
$this->_items[$view][$row->itemid][$row->uid][$property] = $value;
}
}
}