I went to access my Dropbox tonight and it appears it has reset to almost 2 years ago. I have been using dropbox to make folders to save files for a specific class. All the folders corresponding to my current class are gone and folders that I thought I deleted at least a year ago are present. I definitely accessed the new folders last night, but they are gone now. I went to the deleted files menu on dropbox.com and they were not there either. Please let me know if there's anything that can be done, I have a lot of important work in those files.