A Windows Server Failover Clustering (WSFC) API required by availability groups has not been loaded. Always On Availability ...

A Windows Server Failover Clustering (WSFC) API required by availability groups has not been loaded. Always On Availability Groups replica manager is not enabled on the local instance SQL Server. If the server instance is running an edition of SQL Server that supports Always On Availability Groups, you can enable the it by using the SQL Server Configuration Manager.