Availability group '%1!s!' failed to process %2!s!-%3!s! command. The operation encountered SQL Server error %4!s! before ...

Availability group '%1!s!' failed to process %2!s!-%3!s! command.  The operation encountered SQL Server error %4!s! before the availability group configuration could be updated, and has been rolled back.  Refer to the SQL Server error log for details.  Verify that the local Windows Server Failover Clustering (WSFC) node is online, and then retry the command.