Downloading and installing the latest version again should resolve any eventual errors.
@rrho The message will be displayed when there is any job that has an old dropbox token saved. So if one of your existing jobs was connected to Dropbox at some point, then it would still have the old token stored, triggering the notice to reauthenticate the job.
You could either re-enable Dropbox for the job and reauthenticate or otherwise delete the old token with this code:
BackWPup_Option::delete($jobid, 'dropboxtoken');
where $jobid
is replaced with the ID of the actual job. You can find the job ID in the job URL.
This code can be run via CLI or you could also place it in your theme’s functions.php file to execute it once.
Kind regards,
Niklas