I've been backing up some of my stuff on OneDrive, and today, when I tried to rename one of the folders on OneDrive I got an error message saying that the path was too long. I clicked No/Cancel/Whatever-it-was-called thinking that it would abort the rename. Instead, OneDrive stopped syncing. I got it working again, but I'd like to know what I should do if I get this error again. I'm afraid to experiment, because I don't want to risk an even worse problem.