i couldn't find asssu-multisite-config.php

hi
my site i activate multisite, i saw this thread https://www.ads-software.com/support/topic/plugin-amazon-s3-uploads-wpmu-multi-site-compatible

i need to add
require_once(ABSPATH . ‘wp-content/plugins/amazon-s3-uploads/asssu-multisite-config.php’);
in my wp-config.php
but in that folder dont have this file asssu-multisite-config.php
please advise. i’m installing the newest version 1.9.4
i also dont want my client do some settings in this Amazon S3 settings

thanks

https://www.ads-software.com/plugins/amazon-s3-uploads/