https://docs.plesk.com/en-US/onyx/customer-guide/backing-up-and-restoring-websites/uploading-downloading-and-removing-backups.65201/
Please note that storing more than one backup file is not allowed so anytime there is a backup generated by you make sure to download download the backup file and remove from server space once downloaded at your end to comply with our TOS.
If you do not find backup manager option or facing any issue feel free to contact our support at support@webji.services
