Https with valid cert not works

Traefik Traefik v2 (latest)
,
1

Hello everyone,
i have some problem with the v2 version, in particular with https and redirect from http to https.
I read the documentation and i follow it in order to setup traefik but there is something wrong in my config (i think)
So..i have a valid certificate on my host. It's no a Let's Encrypt cert.
I setup traefik as a follows:
traefik.yml file

log:
  level: DEBUG

api:
  insecure: true
  dashboard: true
  debug: true

providers:
  file:
    filename: "/etc/traefik/traefik.config.yml"
    watch: true

  docker:
    exposedByDefault: false

entrypoints:
  traefik:
    address: ":8080"
  http:
    address: ":80"
  secure:
    address: ":433"

traefik.config.yml

http:
  routers:  
    router1:
      rule: "Host(`MY-DOMAIN`) && PathPrefix(`/MY-PREFIX`)"
      service: service1

  services:
    service1:
      loadBalancer:
        servers:
          - url: "MY-EXTERNAL-SERVICE"
tls:
  certificates:
    - certFile: /PATH/TO/MY/CERTS/mydomain.crt
      keyFile: /PATH/TO/MY/CERTS/mydomain.key

Morover i have a frontend in a contanier that it respond to the request https://MY-DOMAIN and the setup of this is as follow:

    labels: 
      - "traefik.http.routers.routerX.entrypoints=http"
      - "traefik.http.routers.routerX.rule=Host(`MY-DOMAIN`)"
      - "traefik.http.routers.routerX.middlewares=my_redirect"
      - "traefik.http.middlewares.my_redirect.redirectscheme.scheme=https"
      - "traefik.http.routers.routerX_https.entrypoints=secure"
      - "traefik.http.routers.routerX_https.rule=Host(`MY_DOMAIN`)"
      - "traefik.http.routers.routerX_https.tls=true"

Where or What i wrog?
Thanks for any suggestions