core: Error setting up entry ViCare for vicare

The problem

The intergration has stopped working.

Home Assistant 2022.8.6
Supervisor 2022.08.3
Operating System 8.4
Frontend 20220802.0 - latest

What version of Home Assistant Core has the issue?

2022.8.6

What was the last working version of Home Assistant Core?

No response

What type of installation are you running?

Home Assistant Core

Integration causing the issue

Viessmann ViCare

Link to integration documentation on our website

https://www.home-assistant.io/integrations/vicare

Diagnostics information

No response

Example YAML snippet

No response

Anything in the logs that might be useful for us?

Logger: homeassistant.config_entries
Source: components/vicare/__init__.py:55
First occurred: 2:34:13 am (2 occurrences)
Last logged: 9:31:00 pm

Error setting up entry ViCare for vicare
Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/config_entries.py", line 357, in async_setup
    result = await component.async_setup_entry(hass, self)
  File "/usr/src/homeassistant/homeassistant/components/vicare/__init__.py", line 44, in async_setup_entry
    await hass.async_add_executor_job(setup_vicare_api, hass, entry)
  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/vicare/__init__.py", line 66, in setup_vicare_api
    vicare_api = vicare_login(hass, entry.data)
  File "/usr/src/homeassistant/homeassistant/components/vicare/__init__.py", line 55, in vicare_login
    vicare_api.initWithCredentials(
  File "/usr/local/lib/python3.10/site-packages/PyViCare/PyViCare.py", line 26, in initWithCredentials
    self.initWithExternalOAuth(ViCareOAuthManager(
  File "/usr/local/lib/python3.10/site-packages/PyViCare/PyViCare.py", line 31, in initWithExternalOAuth
    self.__loadInstallations()
  File "/usr/local/lib/python3.10/site-packages/PyViCare/PyViCare.py", line 43, in __loadInstallations
    installations = self.oauth_manager.get(
  File "/usr/local/lib/python3.10/site-packages/PyViCare/PyViCareAbstractOAuthManager.py", line 41, in get
    self.__handle_server_error(response)
  File "/usr/local/lib/python3.10/site-packages/PyViCare/PyViCareAbstractOAuthManager.py", line 60, in __handle_server_error
    raise PyViCareInternalServerError(response)
PyViCare.PyViCareUtils.PyViCareInternalServerError: (PyViCareInternalServerError(...), 'Request failed with status code 500 and message "Internal server error". ViCare ErrorId: req-d65404e2215c405ebe26a23cd19965b1')

Additional information

No response