I get nuisance messages telling me that there are upload errors on my box drive.  I have gone through and hit the "retry" button, and gone through the settings.  It continues to pop up and say there are errors.  There are no errors in any of my files.  This has been asked previously, without an acceptable answer.  This is not an issue with my files.  I have done everything suggested in other posts.  Why do these nuisance messages keep popping up?