1. Please go to your FTP/Cpanel, and go to folder "wp-content/themes/youractivetheme"
2. Open file "functions.php" and then insert this snippet there and save
function my_custom_member_list_sort( $ret ) {
$ret['type'] = 'alphabetical';
return $ret;
}
add_filter( 'bp_after_has_members_parse_args', 'my_custom_member_list_sort' );
3. Download ZIP file from this link >> https://www.dropbox.com/scl/fi/lf4xw9dj7sqm4c3jt3u51/youzify.zip?rlkey=bmhvayl3msqa1kmbdjbvh2mh2&dl=0
4. Upload it into folder "wp-content/themes/youractivetheme". And then extract the file there (you should can see youzify folder, with members sub folder and index.php file inside.
5. Clear your browser and site cache and check again your Members Directory.