I just noticed that syncing stopped in the past few days when some new files weren't being synced from my Mac to Dropbox. From searching here I found the recommendation to Fix the Hardlinks, which I did but it did not help (Indexing has been stuck at 259,623 for the last 10 hours).
I also tried to Fix Permissions but it failed and the error message said to contact support.
It looks like version of my Dropbox app is v206.4.6506
