"Temporary Error" in Zoho CRM Data Source sync

"Temporary Error" in Zoho CRM Data Source sync

I edited my setup for the Zoho CRM to Zoho Analytics Data Source Import configuration to add some new fields.  After I saved the changes, I clicked the (Sync Now) link.  After a few minutes I got a Sync failure error.  The only reason given is "A temporary error occurred while synchronizing data from Zoho CRM".  I waited a few minutes and tried again. Same error.

I looked at my overall list of fields to see if I could see any problems, but I was unable to determine what could be causing this error.  I have used up my 5 sync attempts between scheduled syncs.  Is there anywhere else I can look to find out why this sync is failing?