Zoho CalDAV and OutlookDAV

Zoho CalDAV and OutlookDAV

I have downloaded OutlookDAV.  The CalDAv URL's work when I test the connections but I get an error when I try to download the remote directories from Zoho.

CalDAV Base URL:
https://calendar.zoho.com/caldav/{Calendar ID}/events/

CardDAV URL:
https://calendar.zoho.com/caldav/{Calendar ID}/events/

My username and password are my Zoho U/N and P/W

Any help?