Terraform tfstate in kubernetes secret

Hi,
I get some issues with terraform tfstate in kubernetes secrets.
I use terraform

2020/10/12 14:33:03 [INFO] Terraform version: 0.13.3 2020/10/12 14:33:03 [INFO] Go runtime version: go1.14.7

my backend looks like:

terraform {
  backend "kubernetes" {
    secret_suffix    = "rjbfybkm6xqug6p-pxrz10zh4msdkd1-state"
    load_config_file = true
    config_path      = "/home/maathor/.qovery-workspace/2020-10-12T12-04-03-019912115-00-00/databases/mysql-app-db/kubernetes_config_dmubm9agk7sr8a8r"
    namespace        = "rjbfybkm6xqug6p-pxrz10zh4msdkd1"
    exec {
      api_version = "client.authentication.k8s.io/v1alpha1"
      command     = "aws-iam-authenticator"
      args = [
        "token",
        "-i",
      "dmubm9agk7sr8a8r"]
      env = {
        AWS_ACCESS_KEY_ID     = "AZERTYUIOP"
        AWS_SECRET_ACCESS_KEY = "qsdfghjklm"
      }
    }
  }
}

But i always get this error:

❯ terraform init
2020/10/12 14:35:34 [INFO] Terraform version: 0.13.3  
2020/10/12 14:35:34 [INFO] Go runtime version: go1.14.7
2020/10/12 14:35:34 [INFO] CLI args: []string{"/home/maathor/bin/.tfenv/versions/0.13.3/terraform", "init"}
2020/10/12 14:35:34 [DEBUG] Attempting to open CLI config file: /home/maathor/.terraformrc
2020/10/12 14:35:34 [DEBUG] File doesn't exist, but doesn't need to. Ignoring.
2020/10/12 14:35:34 [DEBUG] ignoring non-existing provider search directory terraform.d/plugins
2020/10/12 14:35:34 [DEBUG] ignoring non-existing provider search directory /home/maathor/.terraform.d/plugins
2020/10/12 14:35:34 [DEBUG] ignoring non-existing provider search directory /home/maathor/.local/share/terraform/plugins
2020/10/12 14:35:34 [DEBUG] ignoring non-existing provider search directory /usr/share/plasma/terraform/plugins
2020/10/12 14:35:34 [DEBUG] ignoring non-existing provider search directory /usr/local/share/terraform/plugins
2020/10/12 14:35:34 [DEBUG] ignoring non-existing provider search directory /usr/share/terraform/plugins
2020/10/12 14:35:34 [INFO] CLI command args: []string{"init"}

Initializing the backend...
2020/10/12 14:35:34 [TRACE] Meta.Backend: built configuration for "kubernetes" backend with hash value 3405387121
2020/10/12 14:35:34 [TRACE] Meta.Backend: backend has not previously been initialized in this working directory
2020/10/12 14:35:34 [DEBUG] New state was assigned lineage "ae70dfdf-dd4f-be32-1c4b-39f56b1f69a1"
2020/10/12 14:35:34 [TRACE] Meta.Backend: moving from default local state only to "kubernetes" backend


[Kubernetes backend] Neither service_account nor load_config_file were set to true, 
this could cause issues connecting to your Kubernetes cluster.

2020/10/12 14:35:34 [INFO] Successfully loaded config file (/home/maathor/.qovery-workspace/2020-10-12T12-04-03-019912115-00-00/databases/mysql-app-db/kubernetes_config_dmubm9agk7sr8a8r; default context)
2020/10/12 14:35:34 [DEBUG] checking for provisioner in "."
2020/10/12 14:35:34 [DEBUG] checking for provisioner in "/home/maathor/bin/.tfenv/versions/0.13.3"
2020/10/12 14:35:34 [INFO] Failed to read plugin lock file .terraform/plugins/linux_amd64/lock.json: open .terraform/plugins/linux_amd64/lock.json: no such file or directory
2020/10/12 14:35:34 [TRACE] backend/local: state manager for workspace "default" will:
 - read initial snapshot from terraform.tfstate
 - write new snapshots to terraform.tfstate
 - create any backup at terraform.tfstate.backup
2020/10/12 14:35:34 [TRACE] statemgr.Filesystem: reading initial snapshot from terraform.tfstate
2020/10/12 14:35:34 [TRACE] statemgr.Filesystem: snapshot file has nil snapshot, but that's okay
2020/10/12 14:35:34 [TRACE] statemgr.Filesystem: read nil snapshot
2020/10/12 14:35:34 [TRACE] Meta.Backend: ignoring local "default" workspace because its state is empty
2020/10/12 14:35:34 [DEBUG] New state was assigned lineage "a1232caa-4672-6a3c-232f-d642256972ff"
2020/10/12 14:35:34 [TRACE] Preserving existing state lineage "a1232caa-4672-6a3c-232f-d642256972ff"

Successfully configured the backend "kubernetes"! Terraform will automatically
use this backend unless the backend configuration changes.

Error: Failed to get existing workspaces: Unauthorized

I can’t manage to make it works !?
My namespace is bran new, It’s my first time attempt.
Keys are good.
What do you think about it ?
Thanks a lot,
marc