Starting yesterday 14th December 2017 at 04:59:52.3581549 UTC, customers began experiencing failures for environment and package deployment requests submitted through Lifecycle Services for Dynamics 365 Finance and Operations, Enterprise edition environments. We have identified and fixed the issue that was causing the deployments to fail. We are actively monitoring the status of the deployments and can confirm that we have successfully mitigated the issue. Because the issue has been mitigated, please Resume package deployments and Retry environment deployments through LCS. We appreciate your patience as we worked to resolve and resume the deployments. For any further questions, please contact Microsoft Support.