Mongo DB Upgrade command - Ubuntu

Description

I keep getting this bot DM to upgrade something called mongo. I wanna know what the command is. My Rocketchat is on Ubuntu in digital ocean and they didnt wanna help me. I’m not an IT person nor do I know much of this, I just installed rocketchat following youtube tutorials. I just wanna know what the upgrade command is so I can stop getting this message.

Also when I visit my chat I get at random times a message that says bad gatway which I just fix by typing the stop and restart command on putty.

Server Setup Information

  • Version of Rocket.Chat Server: 4.0.0
  • Operating System: Ubuntu on digital ocean
  • Deployment Method:
  • Number of Running Instances: 1
  • DB Replicaset Oplog: I dont know
  • NodeJS Version: I dont know
  • MongoDB Version: 4.0.3??
  • Proxy:
  • Firewalls involved: I dont know

Any additional Information