Connect to external IP address

Hi everyone, for some reason my node.js app is not able to connect to an IP address after I deployed it to digital ocean. My app is supposed to connect to physical alarm systems via IP/Port to get the system status (armed/disarmed). UFW is currently inactive. My app is working locally. Is there something I need to configure in order to get it to connect from the digital ocean servers?

const client = new ElkClient({
    connection: { 
      host: "IP/DNS ADDRESS",
      secure: true/false,
      port: PORT,
      site: "SITENAME"
    }
  })

  console.log(client)
  client.connect().catch((err)=> console.log("Connection Error"))