Hello Andreas
We are aware of the issue and working with the provider of the data to fix it. We know how much our users in Austria care about this service and always work hard to make sure we give the best service. For reasons that are not up to us, we do not have the ability to provide the Google Transit service in Austria right now. We do not have a timeline for when this will be fixed, but rest assured the Google Transit team is working hard to return the service.
We will post another message when the service is back.
Thank you again, and apologies for the inconvenience.
Best