Between 7.30 PM CET and 8.30 PM CET at the 27th of March my website suddenly reported this error when logging in with Facebook:
HTTP Status: 500 (Internal Server Error)
Message: Authorization is required for the operation, but the API binding was created without authorization.
Exception: org.springframework.social.MissingAuthorizationException
The site/server has been running untouched since end of last year. Does anybody know if something was done at that particular day?