OneDrive for Business folder “disappeared” according to client

I don’t have a ton of information, but here is the gist of it:

I’m a Microsoft partner and of of the Office 365 clients I manage reported that there was a folder named “Scan” that she had synced to her PC (scans from the office printer went there). She claims that today when she came in the folder was missing both from her PC and fro the cloud. 

What could have caused this? Is it likely that she accidentally deleted the item and I can soehow retreive it from OneDrive’s recycle bin?

Thank you!

Larah