xmlrpc how to check for errors

Did you check your response ? in most of cases if its workable xmlrpc server it wil return you a faultCode and faultString. You also can setup your oun XMLRPC server (see xmlrpc.php wp_xmlrpc_server_class filter hook) to debug requests on a server side.

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)