Deployments are currently unavailable and failing for unknown reasons. We are currently investigating.
EDIT 15:25 UTC: Deployments are running again. Some more operations will be done in the next few minutes to stabilize the situation. In the meantime, we continue to monitor the health of the deployment system.
EDIT 15:45 UTC: The incident is now over. If you still have troubles deploying your application, please reach out to our support team. Sorry for the inconvenience.