Cannot bring the availability group '%1!s!' online. The local instance was not the previous primary replica when the availability ...

Cannot bring the availability group '%1!s!' online.  The local instance was not the previous primary replica when the availability group went offline, not all databases are synchronized, and no force failover command was issued on the local availability replica.  To designate the local availability replica as the primary replica of the availability group, run the force failover command on this instance of SQL Server.