Failed to bring availability group 'availability_group' online. The operation timed out. Verify that the local Windows Server Failover Clustering (WSFC) node is online. Then verify that the availability group resource exists in the WSFC cluster. If the problem persists, you might need to drop the availability group and create it again.
ODBC Error:  [Microsoft][SQL Server Native Client 11.0][SQL Server]The user does not have permission to perform this action. (297) Failed to run diagnostics command. See previous log for error message