I am unable to connect Mongodb atlas Cluster from node js getting following unable to connect DB error - node.js

Question

{ error: 1, message: 'Command failed: mongodump -h cluster0.yckk6.mongodb.net --port=27017 -d databaseName -p -u --gzip --archive=/tmp/file_name_2022-09-19T09-42-05.gz\n' + '2022-09-19T14:42:08.931+0000\tFailed: error connecting to db server: no reachable servers\n' }
Can anyone help me to solve this problem and following is my backup code
function databaseBackup() {
let backupConfig = {
mongodb: "mongodb+srv://<username>:<password>#cluster0.yckk6.mongodb.net:27017/databaseName?
retryWrites=true&w=majority&authMechanism=SCRAM-SHA-1", // MongoDB Connection URI
s3: {
accessKey: "SDETGGAKIA2GL", //AccessKey
secretKey: "Asad23rdfdg2teE8lOS3JWgdfgfdgfg", //SecretKey
region: "ap-south-1", //S3 Bucket Region
accessPerm: "private", //S3 Bucket Privacy, Since, You'll be storing Database, Private is HIGHLY Recommended
bucketName: "backupDatabase" //Bucket Name
},
keepLocalBackups: false, //If true, It'll create a folder in project root with database's name and store backups in it and if it's false, It'll use temporary directory of OS
noOfLocalBackups: 5, //This will only keep the most recent 5 backups and delete all older backups from local backup directory
timezoneOffset: 300 //Timezone, It is assumed to be in hours if less than 16 and in minutes otherwise
}
MBackup(backupConfig).then(onResolve => {
// When everything was successful
console.log(onResolve);
}).catch(onReject => {
// When Anything goes wrong!
console.log(onReject);
});
}