I am just learning how to back up wordpress site to my dropbox. I got this message though? Dropbox Backup wasn’t created. Dropbox returned an error during file sending: “Unauthorized”.
This error can be caused by the fact, that your plugin was not activated or you was not authorize on Dropbox.
In order to solve the problem you should have Dropbox Account at https://www.dropbox.com/ and you should be connected to this account.
You can connect to Dropbox, from your plugin. Just open “Settings” box in your plugin main window and click the ” Connect to Dropbox” button. When you are connected you will see the following message: “Dropbox successfully connected: UID xxxxxxxx” under the “Connect to Dropbox” button.