Configuration issue after digitalocean installation


I just do the digital ocean installation in ubuntu…
all the file i send in message appear like 0%, images, mp3… also i cannot see the button to record audio or calll… how to activate it?
someone can help me for configuration?

Server Setup Information

  • Version of Rocket.Chat Server:
  • Operating System:
  • Deployment Method:
  • Number of Running Instances:
  • DB Replicaset Oplog:
  • NodeJS Version:
  • MongoDB Version:
  • Proxy:
  • Firewalls involved:

Any additional Information