« Parse Error »

encountered the following error while attempting to parse the requested resource:
« Esecuzione della query fallita
SELECT ppa.att_id, ppa.valore, ppa.att_val_id, ppa.multi_val_id, pa.nome , pa.label, pa.tipo FROM prodotti_prod_att ppa INNER JOIN prodotti_att pa ON ppa.att_id = pa.id WHERE pa.lingua_id = 1 AND ppa.lingua_id = 1 AND ppa.prod_id = ORDER BY pa.ordine .
You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'ORDER BY pa.ordine' at line 2 »
Parser timing
  MySQL: ( Requests)