mysql_fetch_array() error

[corsacrazy]

ok i am getting an error after having this query on my index

this is the error

Warning: mysql_fetch_array(): supplied argument is not a valid MySQL result resource in /forums/admin/db_mysql.php on line 154

this is the query

$newestsql=$DB_site->query("SELECT * FROM gal_Object where Freigabe='y' order by newat desc limit 1"); 
while($newObject=$DB_site->fetch_array($newestsql)) {
$getnewthumb=$DB_site->query_first("SELECT * FROM gal_Pictures where Object='$newObject[ID]' ORDER BY rand() DESC LIMIT 1");
 // get a random pic
        $tmpnew=explode(".",$getnewthumb[filename]); 
        $newthumbfilename="gt_".$tmpnew[0].".jpg";
eval( '$newestsql = "' . gettemplate( 'home_newest' ) . '";' );
}

this is line 154

$this->record = mysql_fetch_array($this->query_id);