Preparing a Full Backup for Your Site Using cPanel
You can make a full backup of your site by following these steps:
From Files block choose Backups
Press Download or Generate a Full Website Backup
Type your email address in Email Address so you can receive a notification message about backup operation completion.
Press Generate Backup
Wait for backup operation completion and you will find the backup file in the root of your site, you can download it using File Manger