Error Message:
The Cluster service is shutting down because the current node is not a member of any cluster. The Cluster service must be reinstalled to make this node a member of a cluster.
Explanation:
The current node either was evicted from a cluster or never was a member of the cluster for which it's trying to acquire quorum information. Typically, this error comes when the current node discovers it's been evicted from its cluster.
User Action:
Using Cluster Administrator, on the evicted node, uninstall the cluster software, then reinstall the cluster software and re-join the cluster.