(which by the way I have no idea what does because it is not adequatedly documented, I was running it exactly to learn what it does)
returned me:
<?xml version="1.0"?> <api servedby="mw1189"> <error code="internal_api_error_DBQueryError" info="[WcbvHwpAIDsAAGki07QAAAAX] Database query error." /> </api>