set the bid adjustments on CRM user lists of a Ad Group

[Paid Media]

I am using AdGroupCriterion to add multiple CRM user lists 
<https://developers.google.com/google-ads/api/docs/remarketing/audience-types/customer-match>
 
to Ad Group and set the bid adjustments on each CRM user list. using the 
following code snippet. 

String adGroup = ResourceNames.adGroup(customerId, adGroupId);
        String userList = ResourceNames.userList(customerId, userListId);
        AdGroupCriterion adGroupCriterion = AdGroupCriterion.newBuilder()
                
.setStatus(AdGroupCriterionStatusEnum.AdGroupCriterionStatus.PAUSED)
                
.setUserList(UserListInfo.newBuilder().setUserList(userList).build())
                .setAdGroup(adGroup)
                .setBidModifier(1)
                .build();
        AdGroupCriterionOperation operation = 
AdGroupCriterionOperation.newBuilder().setCreate(adGroupCriterion).build();

        try(AdGroupCriterionServiceClient serviceClient =
                    
googleAdsClient.getLatestVersion().createAdGroupCriterionServiceClient()){
            MutateAdGroupCriteriaResponse response = 
serviceClient.mutateAdGroupCriteria(Long.toString(customerId), 
ImmutableList.of(operation));
            System.out.println("AdGroupCriterion is created " + 
response.getResults(0).getResourceName());


and getting following error 

Response
--------
Headers: 
Metadata(content-type=application/grpc,request-id=qAPEV98H_Cr9epJpQpbylg,date=Wed,
 
16 Feb 2022 13:05:14 GMT,alt-svc=h3=":443"; ma=2592000,h3-29=":443"; 
ma=2592000,h3-Q050=":443"; ma=2592000,h3-Q046=":443"; 
ma=2592000,h3-Q043=":443"; ma=2592000,quic=":443"; ma=2592000; v="46,43")
Body: null
Failure message: errors {
  error_code {
    request_error: UNKNOWN
  }
  message: "The error code is not in this version."
  trigger {
    int64_value: 7095033345
  }
  location {
    field_path_elements {
      field_name: "operations"
      index: 0
    }
    field_path_elements {
      field_name: "create"
    }
    field_path_elements {
      field_name: "user_list"
    }
    field_path_elements {
      field_name: "user_list"
    }
  }
}
request_id: "qAPEV98H_Cr9epJpQpbylg"

Status: Status{code=INVALID_ARGUMENT, description=Request contains an 
invalid argument., cause=null}.
Exception in thread "main" 
com.google.ads.googleads.v9.errors.GoogleAdsException: errors {
  error_code {
    request_error: UNKNOWN
  }
  message: "The error code is not in this version."
  trigger {
    int64_value: 7095033345
  }
  location {
    field_path_elements {
      field_name: "operations"
      index: 0
    }
    field_path_elements {
      field_name: "create"
    }
    field_path_elements {
      field_name: "user_list"
    }
    field_path_elements {
      field_name: "user_list"
    }
  }
}
request_id: "qAPEV98H_Cr9epJpQpbylg"

        }
Questions:-
is it right way to set bid modifier for user list in Ad Group? 
Not able to get failure reason from error message. How do we get more info 

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