Get_role

Hello!
I now have Version 1.3.88 installed. If I update the plugin to the current version, the problems begin – the pages where there is a shortcode for UM, are unavailable – there is a technical problem on the site.
Here is a sample code from your documentation. One line is noted.
And before the upgrade, it worked fine.
So, in the disabled function does not work after the update get_role ()
And if you unwind this line, the site will be posted with an inscription about temporary technical difficulties. If you login.

$current_user = wp_get_current_user();
$user_id = $current_user->ID;

if ($user_id) {
	global $ultimatemember;

	$umRoleName = "N/A";
	um_fetch_user( $user_id );			
	
	// $umRoleName = $ultimatemember->user->get_role();
    echo $umRoleName;
}