Dropbox has been working normally. I didn't do anything between yesterday and today. I open the dropbox app. try to open a file, word, jpeg, anything. Nothing happens. There are no error codes. The correct doc shows up in the thumbnail to the right, but nothing opens. Not with the "open" button, not with a double click. I rebooted the computer. Nothing. I trashed the app and reinstalled and rebooted. Nothing. I updated Catalina and rebooted nothing. I had a notice that smart sync was not enabled. Tried to do that but got spinning wheel of death twice. Had to force quit. Dropbox was "not responding". Now the icon for the app has disappeared. HELP!!! I can't run my business without these docs and I can't properly share them with clients from the browser.