The Backup archive is a list of backups still available in your account. When you delete an application or a site, You lose access to the Application dashboard, which allows you to manage application backups. However, If that application does not exist now, You can find the backup of that application in the Backup archive.
Here is how you can see the list of archived backups in your ServerAvatar account.
Step 1: First, log in to the ServerAvatar account.
Step 2: Now, you will see the option Archive Backups on the left-hand sidebar.
You will see the Archive Backups page like the below image.
Here you can see your selected Server archive backups based on Backup type: Application, File System, or Database. You can also Download your archive backups.