Library vanished from second computer
I have been using Zotero for a few years. Six months ago I added it to a new computer. All my files are stored in a Dropbox folder which is also synced across both computers. This worked fine, although for the last few months I got an error update message about having Zotero already open/open on another computer. Since January this year, the files on my work computer (the recent addition) are gone. When I try to sync through preferences, nothing happens. How can I get my files back on this computer?