parser.php missing a delete

[Outworldz]

PHP Fatal error: Uncaught exception 'PDOException' with message 'SQLSTATE[23000]: Integrity constraint violation: 1062 Duplicate entry '14959ed2-06b3-4e61-bcac-b84d605ba68c' for key 'PRIMARY'' in C:\inetpub\Wordpress\Search\parser.php:254
Stack trace:
parser.php(254): PDOStatement->execute(Array)
parser.php(70): parse('Dreamlife.outwo...', '8081', '<?xml version="...')
CheckHost('Dreamlife.outwo...', '8081')
{main}
thrown in C:\inetpub\Wordpress\Search\parser.php on line 254

        // Missing delete - should be an atomic update_or_insert with a lock in case more than one parse.php is running.  This hack only works when one parser is alive and then just barely - parcels could be missing from search..

         $query = $db->prepare("DELETE FROM allparcels WHERE parcelUUID = ?");
        $query->execute( array($parceluuid) );

// put that in front of this:

        $query = $db->prepare("INSERT INTO allparcels VALUES(" .
                                ":r_uuid, :p_name, :o_uuid, :g_uuid, " .
                                ":landing, :p_uuid, :i_uuid, :area)");