Issue with Netsuite Get Snap

[
  {
    "error": "An error occurred while executing the SOAP request",
    "stacktrace": "com.snaplogic.data.doc.SnapDocStreamException: Exception while writing document to the underlying stream.\n\tat com.snaplogic.document.parser.DocumentStreamWriter.write(DocumentStreamWriter.java:58)\n\tat com.snaplogic.cc.snap.view.document.DocumentPreviewGenerator.openNewFileAndWrite(DocumentPreviewGenerator.java:122)\n\tat com.snaplogic.cc.snap.view.document.DocumentPreviewGenerator.writeToStorage(DocumentPreviewGenerator.java:100)\n\tat com.snaplogic.cc.snap.view.document.DocumentPreviewGenerator.writePreview(DocumentPreviewGenerator.java:61)\n\tat com.snaplogic.cc.snap.view.document.DocumentOutputViewImpl.lambda$write$0(DocumentOutputViewImpl.java:176)\n\tat com.snaplogic.cc.snap.common.ViewImpl.timeCall(ViewImpl.java:658)\n\tat com.snaplogic.cc.snap.view.document.DocumentOutputViewImpl.write(DocumentOutputViewImpl.java:162)\n\tat com.snaplogic.snap.api.OutBoundViewsImpl.write(OutBoundViewsImpl.java:221)\n\tat com.snaplogic.snaps.netsuite.NetSuiteCommon$3.call(NetSuiteCommon.java:490)\n\tat com.snaplogic.snaps.netsuite.NetSuiteCommon$3.call(NetSuiteCommon.java:431)\n\tat com.snaplogic.snaps.netsuite.NetSuiteCommon.doWithRetry(NetSuiteCommon.java:562)\n\tat com.snaplogic.snaps.netsuite.NetSuiteCommon.postRequest(NetSuiteCommon.java:431)\n\tat com.snaplogic.snaps.netsuite.NetSuiteCommon.makeRequestWithDocument(NetSuiteCommon.java:403)\n\tat com.snaplogic.snaps.netsuite.NetSuiteCommon.process(NetSuiteCommon.java:398)\n\tat com.snaplogic.snap.api.ExecutionUtil.process(ExecutionUtil.java:106)\n\tat com.snaplogic.snap.api.ExecutionUtil.executeForDocument(ExecutionUtil.java:118)\n\tat com.snaplogic.snap.api.ExecutionUtil.execute(ExecutionUtil.java:81)\n\tat com.snaplogic.snap.api.SimpleSnap.execute(SimpleSnap.java:70)\n\tat com.snaplogic.snaps.netsuite.NetSuiteCommon.executeForSuggest(NetSuiteCommon.java:321)\n\tat com.snaplogic.cc.snap.common.SnapRunnableImpl.executeSnap(SnapRunnableImpl.java:765)\n\tat com.snaplogic.cc.snap.common.SnapRunnableImpl.executeForSuggest(SnapRunnableImpl.java:614)\n\tat com.snaplogic.cc.snap.common.SnapRunnableImpl.doRun(SnapRunnableImpl.java:823)\n\tat com.snaplogic.cc.snap.common.SnapRunnableImpl.call(SnapRunnableImpl.java:402)\n\tat com.snaplogic.cc.snap.common.SnapRunnableImpl.call(SnapRunnableImpl.java:116)\n\tat java.base/java.util.concurrent.FutureTask.run(Unknown Source)\n\tat java.base/java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)\n\tat java.base/java.util.concurrent.FutureTask.run(Unknown Source)\n\tat java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)\n\tat java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)\n\tat java.base/java.lang.Thread.run(Unknown Source)\nCaused by: com.fasterxml.jackson.core.JsonGenerationException: Null key for a Map not allowed in JSON (use a converting NullKeySerializer?)\n\tat com.fasterxml.jackson.databind.ser.impl.FailingSerializer.serialize(FailingSerializer.java:35)\n\tat com.fasterxml.jackson.databind.ser.std.MapSerializer.serializeTypedFields(MapSerializer.java:801)\n\tat com.fasterxml.jackson.databind.ser.std.MapSerializer.serializeFields(MapSerializer.java:524)\n\tat com.fasterxml.jackson.databind.ser.std.MapSerializer.serializeWithType(MapSerializer.java:503)\n\tat com.fasterxml.jackson.databind.ser.std.MapSerializer.serializeWithType(MapSerializer.java:29)\n\tat com.fasterxml.jackson.databind.ser.std.MapSerializer.serializeTypedFields(MapSerializer.java:803)\n\tat com.fasterxml.jackson.databind.ser.std.MapSerializer.serializeFields(MapSerializer.java:524)\n\tat com.fasterxml.jackson.databind.ser.std.MapSerializer.serializeWithType(MapSerializer.java:503)\n\tat com.fasterxml.jackson.databind.ser.std.MapSerializer.serializeWithType(MapSerializer.java:29)\n\tat com.fasterxml.jackson.databind.ser.std.MapSerializer.serializeTypedFields(MapSerializer.java:803)\n\tat com.fasterxml.jackson.databind.ser.std.MapSerializer.serializeFields(MapSerializer.java:524)\n\tat com.fasterxml.jackson.databind.ser.std.MapSerializer.serializeWithType(MapSerializer.java:503)\n\tat com.fasterxml.jackson.databind.ser.std.MapSerializer.serializeWithType(MapSerializer.java:29)\n\tat com.fasterxml.jackson.databind.ser.std.MapSerializer.serializeTypedFields(MapSerializer.java:803)\n\tat com.fasterxml.jackson.databind.ser.std.MapSerializer.serializeFields(MapSerializer.java:524)\n\tat com.fasterxml.jackson.databind.ser.std.MapSerializer.serializeWithType(MapSerializer.java:503)\n\tat com.fasterxml.jackson.databind.ser.std.MapSerializer.serializeWithType(MapSerializer.java:29)\n\tat com.fasterxml.jackson.databind.ser.std.MapSerializer.serializeTypedFields(MapSerializer.java:803)\n\tat com.fasterxml.jackson.databind.ser.std.MapSerializer.serializeFields(MapSerializer.java:524)\n\tat com.fasterxml.jackson.databind.ser.std.MapSerializer.serializeWithType(MapSerializer.java:503)\n\tat com.fasterxml.jackson.databind.ser.std.MapSerializer.serializeWithType(MapSerializer.java:29)\n\tat com.fasterxml.jackson.databind.ser.std.MapSerializer.serializeTypedFields(MapSerializer.java:803)\n\tat com.fasterxml.jackson.databind.ser.std.MapSerializer.serializeFields(MapSerializer.java:524)\n\tat com.fasterxml.jackson.databind.ser.std.MapSerializer.serializeWithType(MapSerializer.java:503)\n\tat com.fasterxml.jackson.databind.ser.std.MapSerializer.serializeWithType(MapSerializer.java:29)\n\tat com.fasterxml.jackson.databind.ser.std.MapSerializer.serializeTypedFields(MapSerializer.java:803)\n\tat com.fasterxml.jackson.databind.ser.std.MapSerializer.serializeFields(MapSerializer.java:524)\n\tat com.fasterxml.jackson.databind.ser.std.MapSerializer.serialize(MapSerializer.java:469)\n\tat com.fasterxml.jackson.databind.ser.std.MapSerializer.serialize(MapSerializer.java:29)\n\tat com.fasterxml.jackson.databind.ser.DefaultSerializerProvider.serializeValue(DefaultSerializerProvider.java:130)\n\tat com.fasterxml.jackson.databind.ObjectMapper._configAndWriteValue(ObjectMapper.java:3559)\n\tat com.fasterxml.jackson.databind.ObjectMapper.writeValue(ObjectMapper.java:2893)\n\tat com.snaplogic.document.parser.DocumentStreamWriter.write(DocumentStreamWriter.java:52)\n\t... 29 more\n",
    "reason": "Exception while writing document to the underlying stream.",
    "resolution": "Please verify that the incoming data is valid and sufficient for the request",
    "status_code": "error",
    "snap_details": {
      "label": "Get Customer",
      "instance_id": "001c9e90-XXX-42c9-XXX-XXX",
      "class_id": "com-snaplogic-snaps-netsuite-lookup",
      "build_tag": "main6403",
      "views": {
        "in": {
          "input0": {
            "count": 2
          }
        },
        "out": {
          "output0": {
            "count": 1
          }
        },
        "error": {
          "error0": {
            "count": 0
          }
        }
      }
    },
    "original": {
      "baseRef": {
        "externalId": "XX-XXX",

"type": "customer"
      }
    }
  }
]