How to configure Traefik with Managed Kubernetes Service

How to use Traefik as an Ingress Controller on an OVH Managed Kubernetes Service? I followed the installation guide of Traefik for HELM Chart V2 and obtained an external IP via OVH's LoadBalancer, but my Ingress cannot reach my services. I tried the same thing with NGINX and it works. How can I solve this problem with Traefik?

Here's the result I got. The Ingress cannot obtain the external IP address!
```
me@my-comp:~$ kubectl get service
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
isj-backend-service NodePort 10.3.73.2 30000:30583/TCP 19m
isj-frontend-service NodePort 10.3.121.107 80:31327/TCP 19m
isj-mongo-service ClusterIP 10.3.80.144 27017/TCP 19m
isj-postgres-service ClusterIP 10.3.156.157 5432/TCP 19m
kubernetes ClusterIP 10.3.0.1 443/TCP 2d17h
traefik LoadBalancer 10.3.133.34 162.19.17.146 80:31744/TCP,443:31791/TCP 2m20s
me@my-comp:~$ kubectl get ingress
NAME CLASS HOSTS ADDRESS PORTS AGE
ingress traefik * 80 11m
```