my ($index_tpl, $err_cfg_dir) = (undef, undef);
my $vhost = $main::cfg{'BASE_SERVER_VHOST'};
my $prefix = $main::cfg{'BASE_SERVER_VHOST_PREFIX'};
$err_cfg_dir = "$main::cfg{'GUI_ROOT_DIR'}/default_page";

$rs, $index_tpl) = get_tpl($err_cfg_dir, 'index.html');
return $rs if ($rs != 0);