The Cyclic Redundancy Check (CRC) value generated for the retrieved availability group configuration data from the Windows ...

The Cyclic Redundancy Check (CRC) value generated for the retrieved availability group configuration data from the Windows Server Failover Clustering (WSFC) store does not match that stored with the data for the availability group with ID '%1!s!'.  The availability group data in the WSFC store may have been modified outside SQL Server, or the data is corrupt.  If the error persists, you may need to drop and recreate the availability group.