You can get a backup version of a website directly and upload through the FTP through your control panel
Log in to control panel of the site
You'll find an icon called Backup.
Enter it and you will find an option
Download or create a full backup (Download or Generate a Full Website Backup)
After logging click on the word
Create Backup
After the backup process is finished you can download it from the same page or login to the FTP and upload it