Delete inactive users (cronjob)

Hello. Some time ago I asked for a plugin to delete automatically inactive users after certain period of time. I was given a code snippet which worked well. The snippet from this thread.

https://www.ads-software.com/support/topic/automatically-delete-inactive-users-cron/

But now it stopped working, I suppose after update to version 2.8 of Ultimate member. Can you please help me to make it work again? Thanks

Old code snippet:

/**
 * Delete inactive users after 60 days of inactivity based on last login time.
 */
if ( ! wp_next_scheduled( 'um_cron_delete_users' ) ) {
	wp_schedule_event( time(), 'daily', 'um_cron_delete_users' );
}
add_action( 'um_cron_delete_users', 'um_cron_delete_inactive_users_by_last_login' );
function um_cron_delete_inactive_users_by_last_login() {

	$args = array(
		'fields'     => 'ids',
		'number'     => -1,
		'meta_query' => array(
			'relation' => 'AND',
			array(
				'key'     => '_um_last_login',
				'compare' => 'BETWEEN',
				'value'   => array(
					strtotime( '10 years ago' ),
					strtotime( '60 days ago' ),
				),
			),
		),
	);

	$users = get_users( $args );

	foreach ( $users as $user_id ) {
		um_fetch_user( $user_id );
		UM()->user()->delete( false );
	}
}