« Parse Error »

encountered the following error while attempting to parse the requested resource:
« Esecuzione della query fallita
SELECT t.id FROM news_contents AS t WHERE t.rewrite='il-venerdi-di-Repubblica-La-bottiglia' AND lingua_id= .
You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '' at line 1 »
Parser timing
  MySQL: ( Requests)