Fail to connect to baikal

[eyalcha]

The problem

Fail to connect to baikal

What version of Home Assistant Core has the issue?

2022.07

What was the last working version of Home Assistant Core?

No response

What type of installation are you running?

Home Assistant Container

Integration causing the issue

No response

Link to integration documentation on our website

No response

Diagnostics information

No response

Example YAML snippet

No response

Anything in the logs that might be useful for us?

2022-08-04 00:47:00 ERROR (MainThread) [homeassistant.components.calendar] caldav: Error on device update!
Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/helpers/entity_platform.py", line 446, in _async_add_entity
    await entity.async_device_update(warning=False)
  File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 702, in async_device_update
    await task
  File "/usr/local/lib/python3.10/concurrent/futures/thread.py", line 58, in run
    result = self.fn(*self.args, **self.kwargs)
  File "/usr/src/homeassistant/homeassistant/components/caldav/calendar.py", line 144, in update
    self.data.update()
  File "/usr/src/homeassistant/homeassistant/util/__init__.py", line 192, in wrapper
    result = method(*args, **kwargs)
  File "/usr/src/homeassistant/homeassistant/components/caldav/calendar.py", line 203, in update
    results = self.calendar.date_search(start_of_today, start_of_tomorrow)
  File "/usr/local/lib/python3.10/site-packages/caldav/objects.py", line 750, in date_search
    objects = self.search(root, comp_class)
  File "/usr/local/lib/python3.10/site-packages/caldav/objects.py", line 812, in search
    (response, objects) = self._request_report_build_resultlist(xml, comp_class)
  File "/usr/local/lib/python3.10/site-packages/caldav/objects.py", line 779, in _request_report_build_resultlist
    response = self._query(xml, 1, 'report')
  File "/usr/local/lib/python3.10/site-packages/caldav/objects.py", line 167, in _query
    raise error.exception_by_method[query_method](errmsg(ret))
caldav.lib.error.ReportError: ReportError at '500 Internal Server Error

b'<?xml version="1.0" encoding="utf-8"?>\n<d:error xmlns:d="DAV:" xmlns:s="http://sabredav.org/ns">\n  <s:sabredav-version>4.3.1</s:sabredav-version>\n  <s:exception>Sabre\\VObject\\ParseException</s:exception>\n  <s:message>This parser only supports VCARD and VCALENDAR files</s:message>\n</d:error>\n'', reason no reason

### Additional information

Baikal is running locally on same machine

[probot-home-assistant]

caldav documentation
caldav source
_{^{(message by IssueLinks)}}

[eyalcha]

More info:

Patching the php file (sabre-io/dav#1318 (comment)) solved th eissue, altough I hope it will be fixed in the integration itself