Running PMS in container can't add/view Media

[hemna]

I am using docker to standup my PMS. I am using docker-compose to start and maintain my
plex container. I am running docker version

Docker version.

Docker version 18.06.3-ce, build d7080c1

docker-compose version 1.21.2, build a133471
docker-py version: 3.3.0
CPython version: 3.6.9
OpenSSL version: OpenSSL 1.1.1  11 Sep 2018

└─[$] <> cat /etc/issue
Ubuntu 18.04.4 LTS \n \l

My docker-compose.yml file:

version: '3.2'

services:
  plex:
    image:  plexinc/pms-docker
    container_name: plex
    ports:
      - "32400:32400/tcp"
      - "3005:3005"
      - "8324:8324"
      - "32410:32410"
      - "32412:32412"
      - "32413:32413"
      - "32414:32414"
    volumes:
      - /mnt/plex/Movies:/data/movies
      - /mnt/plex/TV Shows:/data/tvshows
      - /opt/docker/plex/config:/config
      - /opt/docker/plex/transcode:/transcode
    environment:
        - HOSTNAME="PlexServer"
        - TZ="Americas/NewYork"
        - ADVERTISE_IP="http://192.168.1.44:32400/"
        - PLEX_UID=1000
        - PLEX_GID=1000
        - CHANGE_CONFIG_DIR_OWNERSHIP=false
    restart: unless-stopped

Plex seems to come up, but when I click the menu on the left to view my media, I
get a page that says Install Plex Media Server. Screenshot below.