This error indicates that it has not been possible to save an event in your Dropbox. This can happen when:
- There is a file name conflict (two files with the same name);
- There are permission issues;
- There are invalid characters (if you rename files with unsupported characters).
Please note that you will still be able to play your videos from the Home + Security application and you can download them in order to manually add them to your Dropbox.
Do not hesitate to consult the Dropbox support for further information and assistance.