I’ve had the exact same thing happen to me. None of the forums on here answer why this could’ve happened. I’ve checked with collaborators and in our deleted files, nothing is there. It has happened within the last 30 days too so they couldn’t have been permanently deleted.

Hi ​@frustrated, 

Welcome to Box Community, and we’re glad to assist! 

We’ve noticed that the contents in your account are all shared folders. And it appears that you must reach out to the folder owner regarding your access to the folders. 

Thanks for posting!