I am trying to launch node red with docker compose and its throwing up some error

General
10

You can remap the user with the following iirc:

version: "3"

services:
  nodered:
    container_name: nodered
    image: nodered/node-red:latest
    user: "uid:gid"
    restart: always
    environment:
      - TZ=Asia/Kolkata
    ports:
      - "1880:1880"
    networks:
      - public
    volumes:
      - "/mnt/external/nr-personal:/data"
volumes:
  nr-personal:
networks:
  public:

where uid and gid are the numerical id's on the host system that has access to the volume.