Warning: mysqli_connect(): (HY000/1045): Access denied for user 'extranet'@'localhost' (using password: YES) in /var/www/vhosts/istega.biz/httpdocs/extranet/registro_usuario/registro_usuario.php on line 12

Warning: mysqli_error() expects exactly 1 parameter, 0 given in /var/www/vhosts/istega.biz/httpdocs/extranet/registro_usuario/registro_usuario.php on line 13
Imposible conectar: