errorMessage: Converting circular structure to JSON

[Aqua-4]

While creating a node I am able to create the node, but it throws the following error.

{
    "errorMessage": "Converting circular structure to JSON\n    --> starting at object with constructor 'Neode'\n    |     property 'models' -> object with constructor 'ModelMap'\n    --- property '_neode' closes the circle",
    "errorType": "TypeError",
    "stackTrace": [
        "TypeError: Converting circular structure to JSON",
        "    --> starting at object with constructor 'Neode'",
        "    |     property 'models' -> object with constructor 'ModelMap'",
        "    --- property '_neode' closes the circle",
        "    at JSON.stringify (<anonymous>)",
        "    at createHandler (/home/xxx/xxxcreateHandler.js:38:16)",
        "    at processTicksAndRejections (internal/process/task_queues.js:97:5)"
    ]
}