Hey @Broadwick_0, I hope you're having a good day so far!
From what you mentioned, it sounds like you might be part of a free team, which keeps the business team folder structure when downgrading from a paid business plan.
In this case, what you can do is to leave the team (or delete if you're the admin) with the steps outlined here.
This will just revert your account back to a personal account, and your files will remain safely inside your account.
I hope this helps, let me know how it goes!