Calendar not live?

Sorry, we no longer have authority to access the requested calendar.

The owner of this calendar can re-authorize access at

When I click on the re-authorize link it brings up an error:

This site can’t be reached

Check if there is a typo in %7Bdetecteddomain%7D.

When you are seeing this message, this means that the calendar owner needs to re-integrate. That can be done here: