Data Lake Collection Import Authentication Failed in Realm Function

MongoDB Atlas App Services & Realm Atlas Triggers & Functions
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While I was inquiring about the document in the data lake collection in Realm Function, the following authentication failure error occurred

“uncaught promise rejection: error connecting to MongoDB service cluster: failed to ping: connection() error occured during connection handshake: auth error: sasl conversation error: unable to authenticate using mechanism “SCRAM-SHA-1”: (AuthenticationFailed) authentication failed, correlationID = 16c6f0d3ebf9520e6397ad2e”

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The function script is as follows.

exports = async function(changeEvent) {
  const user = context.services
    .get("datalake")
    .db("Database0")
    .collection("Collection0");
  let result = user.findOne({});
};

Can you tell me what I should do to solve this error?