Telegraf Error in plugin: connect failed: error validating input: server does not support an endpoint with security:None

I try to create an docker compose stack involving InfluxDB, Telegraf and Grafana. To gather some test data i have used this basic test server: https://github.com/gabrielmbmb/opcua-test-server

However, I keep receiving the follwing error when starting up my docker compose stack:

telegraf | 2025-07-07T12:55:30Z E! [inputs.opcua] Error in plugin: connect failed: error validating input: server does not support an endpoint with security: "http://opcfoundation.org/UA/SecurityPolicy#None", "MessageSecurityModeNone"

What i have done: -Set all security aspects in the server.ts to "None":

 public startServer(): void {
    const serverOptions: OPCUAServerOptions = {
      securityPolicies: [SecurityPolicy.None, SecurityPolicy.None],
      securityModes: [
        MessageSecurityMode.None,
        MessageSecurityMode.None,
        MessageSecurityMode.None,
      ],

Here is my telegraf.config:

[agent]
  interval = "10s"
  round_interval = true

[[inputs.opcua]]
  endpoint = "opc.tcp://host.docker.internal:5001/UA/test"


  nodes = [
    { name = "fanSpeed", namespace = "1", identifier_type = "s", identifier = "fanSpeed" },
    { name = "fanOn", namespace = "1", identifier_type = "s", identifier = "fanOn" }
  ]

[[outputs.influxdb_v2]]
  urls = ["http://influxdb:8086"]
  token = "Removed"
  organization = "Removed"
  bucket = "Removed"

And finally my docker-compose.yaml

    version: "3"
services:
  influxdb:
    image: influxdb:2.5.1-alpine
    container_name: influxdb
    restart: unless-stopped
    ports:
      - '8086:8086'
    volumes:
      - influxdb_data:/var/lib/influxdb2

  grafana:
    image: grafana/grafana-oss
    container_name: grafana
    restart: unless-stopped
    depends_on:
     - influxdb
    ports:
     - '3000:3000'
    volumes:
     - grafana_data:/var/lib/grafana

  telegraf:
    image: telegraf
    container_name: telegraf
    restart: unless-stopped
    depends_on:
     - influxdb
    volumes:
      - ./telegraf.conf:/etc/telegraf/telegraf.conf:ro
volumes:
  grafana_data: {}
  influxdb_data: {}