Hi @rmsydv, thanks for messaging the Community!
I'm sorry to hear about this matter. It looks like you enabled the automatic computer backup feature in the Dropbox desktop application. Could you first try disabling the computer backup from Dropbox using the steps in the above article to see if this helps?
Afterwards, you can move the folders and files back to their previous locations, which will also delete them from the Dropbox account online.
Let me know how it goes!