Unhandled rejection

[shriyansnaik]

Making a post request but keeps failing.

mongoose version: "^6.5.2"
fawn version: "^2.1.5"

my code snippet:

try {
    new Fawn.Task()
      .save(MongoModel1, new_doc)
      .update(MongoModel2, { _id: doc_id }, { name: "new_name" })
      .run();

    res.send(new_doc);
  } catch (error) {
    res.status(500).send(`Something went wrong: ${error}`);
}

Error I am getting:

Unhandled rejection MongoError: Unsupported OP_QUERY command: insert. The client driver may require an upgrade. For more details see https://dochub.mongodb.org/core/legacy-opcode-removal
    at Function.MongoError.create (C:\00 My Files\NodeJs\Vidly-NodeJs-project\node_modules\mongodb-core\lib\error.js:31:11)
    at C:\00 My Files\NodeJs\Vidly-NodeJs-project\node_modules\mongodb-core\lib\connection\pool.js:497:72
    at authenticateStragglers (C:\00 My Files\NodeJs\Vidly-NodeJs-project\node_modules\mongodb-core\lib\connection\pool.js:443:16)
    at Connection.messageHandler (C:\00 My Files\NodeJs\Vidly-NodeJs-project\node_modules\mongodb-core\lib\connection\pool.js:477:5)
    at Socket.<anonymous> (C:\00 My Files\NodeJs\Vidly-NodeJs-project\node_modules\mongodb-core\lib\connection\connection.js:331:22)
    at Socket.emit (node:events:390:28)
    at addChunk (node:internal/streams/readable:315:12)
    at readableAddChunk (node:internal/streams/readable:289:9)
    at Socket.Readable.push (node:internal/streams/readable:228:10)
    at TCP.onStreamRead (node:internal/stream_base_commons:199:23)