Internal database for the production version of the software

Hi, I got this error while running the production version of the software…
And I plan to use the built-in mongo and I do not want to use a separate server for the database.

and this is pm2 json file :

  GNU nano 4.8                                                                    pm2.json                                                                               
{
  "apps": [
    {
      "name": "meteor",
      "cwd": "/home/App/bundle/",
      "script": "main.js",
      "instances":1,
      "env": {
        "NODE_ENV": "production",
        "WORKER_ID": "0",
        "PORT": "3000",

        "ROOT_URL": "http://xxx.xxx.xxx.xxx/",
        "MONGO_URL": "mongodb://localhost:27017/meteor",
        "MONGO_OPLOG_URL": "mongodb://localhost:27017/local",
        "HTTP_FORWARDED_COUNT": "1",
        "MAIL_URL": "",
        "METEOR_SETTINGS": {
          "public": {
              "MainUrl" : "http://xxx.xxx.xxx.xxx/"
          },
          "PrerenderIO": {
              "serviceUrl": "http://localhost:3030/",
              "token": "nothing"
          }
        }
      }
    }

  ]
}
  

And this is mongod.conf
:

# mongod.conf

# for documentation of all options, see:
#   http://docs.mongodb.org/manual/reference/configuration-options/

# Where and how to store data.
storage:
  dbPath: /var/lib/mongodb
  journal:
    enabled: true
#  engine:
#  mmapv1:
#  wiredTiger:


# where to write logging data.
systemLog:
  destination: file
  logAppend: true
  path: /var/log/mongodb/mongod.log

# network interfaces
net:
  port: 27017
  bindIp: 127.0.0.1


# how the process runs
processManagement:
  timeZoneInfo: /usr/share/zoneinfo

#security:

#operationProfiling:

#replication:
 # replSetName: meteor

#sharding:

## Enterprise-Only Options:

#auditLog:

#snmp: