meta_query all posts between to ages

you can write like for this.

'meta_query' => array(                  
   array(
      'key'     => '_age_from',
    'value'   => sanitize_text_field( $_REQUEST['age_from'] ),
    'compare' => '>=',
    'type'    => 'NUMERIC'
    ),
   array(
    'key'     => '_age_to',
    'value'   => sanitize_text_field( $_REQUEST['age_to'] ),
    'compare' => '<=',
    'type'    => 'NUMERIC'
   )
);

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