Trouble configuring Caldav with Zoho calendar

Trying to setup Caldav for my Zoho calendar but I get and error. Tried different URLs but with no success. Anyone who has this working?

My configuration:

calendar:
  - platform: caldav
    username: <redacted>
    password: <redacted>
    url: https://calendar.zoho.eu

Error message:

2021-07-12 13:40:53 INFO (MainThread) [homeassistant.components.calendar] Setting up calendar.caldav
2021-07-12 13:40:54 ERROR (MainThread) [homeassistant.components.calendar] Error while setting up caldav platform for calendar
  File "/usr/src/homeassistant/homeassistant/components/caldav/calendar.py", line 77, in setup_platform
  File "/usr/local/lib/python3.9/site-packages/caldav/davclient.py", line 124, in principal
  File "/usr/local/lib/python3.9/site-packages/caldav/objects.py", line 381, in __init__
  File "/usr/local/lib/python3.9/site-packages/caldav/objects.py", line 242, in get_properties
Exception: The CalDAV server you are using has a problem with path handling, or the URL is wrong.

Any help would be appreciated!