Problem deleting a Vault

Hello,

I'm trying to delete an old Vault (Us-east-1, from 2013). So I did the inventory and proceeded to deleting the archives. After all, I can't delete the vault, it says it still not empty.
The AWS console says this vault has 9909 files (inventory last Updated). The latest inventory that I ran yesterday, says 2477 files. Today, there's no update in the "Inventory last uptaded" information, it shows 9909 files from a 2013 inventory job.
What should I do?

Thanks in advance.